The doubling time of a bank account balance is the amount of time it takes for the balance to double. In this case, the doubling time is 10 years, which means that the balance will double every 10 years.
Let's say the initial balance in the bank account is B. After 10 years, the balance will have doubled to 2B. After another 10 years (i.e., 20 years from the initial balance), the balance will have doubled again to 4B. Finally, after another 10 years (i.e., 30 years from the initial balance), the balance will have doubled one more time to 8B.
Therefore, after 30 years, the balance in the bank account will have grown by a factor of 8B/B, which simplifies to just 8. This means that the balance in the bank account will be 8 times the initial balance after 30 years.
To summarize, the balance in the bank account will double every 10 years due to the given doubling time. After 30 years, it will have doubled three times, resulting in a growth factor of 2 x 2 x 2 = 8, which means the balance will be 8 times the initial balance.
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Which function is represented by the graph below?
Use the slope 2, and y-intercept 1, to complete the equation of the line in slope-intercept form, "x" will be "x."
y =
Answer:
y = 2x + 1
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
here slope m = 2 and y- intercept c = 1 , then
y = 2x + 1 ← equation of line
I need help with this
An equation is y = -12/3 when x = 3, y = -4.
What is equation?
An equation is a mathematical statement that indicates that two expressions are equal to each other. It typically consists of variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. Equations are used to solve problems and find the value of unknown variables that satisfy the given conditions.
If x and y vary inversely, it means that as x increases, y decreases and vice versa. We can write this relationship as:
x × y = k
where k is a constant of proportionality. To find the value of k, we can use the given information.
When x = 3, y = -4:
3 × (-4) = k
k = -12
Now we can substitute k into the equation to get:
x × y = -12
This is the equation relating x and y. To find y when x = 3:
3 × y = -12
y = -12/3
Therefore, when x = 3, y = -12/3.
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An equation is y = -12/3 when x = 3, y = -4.
What is equation?
An equation is a mathematical statement that indicates that two expressions are equal to each other. It typically consists of variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. Equations are used to solve problems and find the value of unknown variables that satisfy the given conditions.
If x and y vary inversely, it means that as x increases, y decreases and vice versa. We can write this relationship as:
x × y = k
where k is a constant of proportionality. To find the value of k, we can use the given information.
When x = 3, y = -4:
3 × (-4) = k
k = -12
Now we can substitute k into the equation to get:
x × y = -12
This is the equation relating x and y. To find y when x = 3:
3 × y = -12
y = -12/3
Therefore, when x = 3, y = -12/3.
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Does anyone have the answer for this?
Answer:
m<CAD=m<CBD - alternate interior angles
Step-by-step explanation:
I'm not sure what the question wants you to put, but the way to solve this question would be to prove the angles are congruent, and then use CPCTC (corresponding parts of congruent triangles are congruent) to prove that BD= CA. I hope this helped!
When a baseball is thrown upward, its height h, in feet, is the function of time t, in seconds. If this function is described by the formula h(t)=-16t^2+24t+5, what is the maximum height of the baseball reaches?
Answer:
the maximal height is 14.75 units of distance.
Step-by-step explanation:
We want to find the maximum height of the function
h(t) = -16*t^2 + 24*t + 5
In order to find the maximum, we need to find the value of t where the derivate of h(t) is equal to zero, then we evaluate our original function in that time.
The derivate of h(t) (or the vertical velocity) is:
h'(t) = 2*(-16)*t + 24 = -32*t + 24
we want to find the value of such:
0 = -32*t +24
32*t = 24
t = 24/32 = 0.75
Now we evaluate our height function in that value.
h(0.75) = -16*0.75^2 + 25*0.75 + 5 = 14.75 units
If x = 5 and y = -6 find the value of 3(x - y) + xy
Answer:
The value of the given equation is 3.
Step-by-step explanation:
QUESTION :If :
x = 5 y = -6Find the value of 3(x - y) + xy
SOLUTION :[tex] \longrightarrow{\sf{3(x - y) + xy}}[/tex]
Substituting the given values in the equation :
[tex] \longrightarrow{\sf{3 \bigg(5 - (-6) \bigg) + 5 \times - 6}}[/tex]
[tex] \longrightarrow{\sf{3 \bigg( 5 + 6 \bigg) - 30}}[/tex]
[tex] \longrightarrow{\sf{3 \bigg( 11 \bigg) - 30}}[/tex]
[tex] \longrightarrow{\sf{ 33 - 30}}[/tex]
[tex]\longrightarrow{\sf{\underline{\underline{ 3}}}}[/tex]
Hence, the value of the given equation is 3.
————————————————HELP DUE ASAP!!!!!
The box plots display data collected when two teachers asked their classes how many pencils they lose in a school year. A box plot uses a number line from 5 to 47 with tick marks every one unit. The box extends from 8 to 14 on the number line. A line in the box is at 11. The lines outside the box end at 7 and 45. The graph is titled Mr. Johnson's Class, and the line is labeled Number Of Pencils. A box plot uses a number line from 0 to 51 with tick marks every one unit. The box extends from 12 to 21 on the number line. A line in the box is at 14.5. The lines outside the box end at 0 and 50. The graph is titled Mr. Simpson's Class, and the line is labeled Number Of Pencils. Which class lost the most pencils overall based on the data displayed? Mr. Simpson's class; it has a larger median value 14.5 pencils Mr. Johnson's class; it has a larger median of 11 pencils Mr. Simpson's class; it has a narrow spread in the data Mr. Johnson's class; it has a wide spread in the data
URGENT!! ILL GIVE
BRAINLIEST! AND 100 POINTS
Answer:
Plot the points on the graphing calculator, and then determine the linear regression equation: y = -.7222x + 7.2111
The closest equation is A.
Determine the order of the matrix.
VA/L
1
5
-1 1 1 -5
-3 5 7
The order of a matrix is 2 x 5.
We have,
The order of a matrix is in the form of:
= number of rows x number of columns
Now,
The given matrix has 2 rows.
The given matrix has 5 columns.
Now,
= number of rows x number of columns
= 2 x 5
Thus,
The order of a matrix is 2 x 5.
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A rectangular storage container with an open top is to have a volume of 20 cubic meters. The length of its base is twice the width. Material for the base costs 20 dollars per square meter. Material for the sides costs 3 dollars per square meter. Find the cost of materials for the cheapest such container.
The cost of the materials for the cheapest container is when width = 1.5 m
Given data ,
Let's use "w" metres to represent the rectangular storage container's width. The length would be "2w" metres since the base's length is twice as long as its width.
The container's height is indicated by the letter "h" metres.
Volume is determined by the following formula:
20 = (2w)(w)(h) 20 = 2w²h
The equation may be rearranged to represent "h" in terms of "w":
h = 20 / (2w²)
The container's "w" and "h" surface area is the next item to discuss. The surface area would be made up of the base and the four sides as the container has an open top.
We are given that the cost of material for the base is $20 per square meter and the cost of material for the sides is $3 per square meter
Cost of base material = 20 x 2w² = 40w² dollars
Cost of side material = 3 x 4wh = 12wh dollars
Total cost of material = Cost of base material + Cost of side material = 40w² + 12wh dollars
Now we can substitute the expression for "h" that we derived earlier:
Total cost of material = 40w^2 + 12w(20 / (2w²)) = 40w² + 120 / w
To find the value of "w" that minimizes the cost of material, we can take the derivative of the total cost of material with respect to "w" and set it equal to zero, then solve for "w":
d/dw (40w² + 120 / w) = 0
80w - 120 / w² = 0
On multiplying by w² on both sides , we get
80w = 120
Divide by 80 on both sides , we get
w = 3/4 m
Hence , the width of the rectangular box is w = 1.5 meter
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A game uses a single 6-sided die. To play the game, the die is rolled one time, with the following results:
• Even number = lose $9.
• 1 or 3 = win $2
• 5 = win $10
What is the expected value of the game?
Solve for x: x - 2 = 10
A: 2
B:8
C:10
D:12
Answer:
12 is the answer
Step by step explanation
to get answer move all terms not containing x to the right side of the equation
(AWARDING 90 POINTS!!!) Does this data set have any outliers?
{667, 667, 505, 435, 844, 435, 346, 667, 346, 779, 222}
Yes, 222 is an outlier.
Yes, 667 is an outlier.
Yes, 844 is an outlier.
No, there are no outliers.
Answer:
Yes, 222 is an outlier
Step-by-step explanation:
{222, 346, 346, 435, 435, 505, 667, 667, 667, 779, 844}
Q1 = 435
Q3 = 667
IQR = Q3 - Q1 = 232
222 is below Q1 - 1.5*IQR (104)
Supplementary angles
Answer:
∠AGB or ∠EGD.
Step-by-step explanation:
∠AGB & ∠EGD make a straight line with ∠BGD which means they're supplementary.
Answer: ∠BGA
Step-by-step explanation:
Starting Angle: ∠BGD
Supplement: ∠BGA
Greta's neighborhood is having a picnic to celebrate the end of the school year. She has been
asked to prepare potato salad. Greta actually has to work at 2pm when the picnic is scheduled, so
she asks Lynn, the neighbor coordinating food, if she can drop off the potato salad at the park
when she goes into work at 10am. Lynn is not sure this will work. Describe why Lynn is hesitant
and what might happen if Greta's potato salad sits out in the sun until the picnic begins at 2pm.
Then offer at least one suggestion to solve Greta and Lynn's problem.
Answer:
Step-by-step explanation:
they do not have enough time
Step-by-step explanation:
they do not have enough time
The Indian cricket team won 50% of the matches played in the first two weeks of the
NatWest series in Australia. However, at the end of the series its success rate was 75%. If
the team had played 6 matches in the first two weeks and they then won all the matches
they played after the first two weeks, how many matches did they play after the first
two weeks?
Answer:
the Indian cricket team played 13 matches after the first two weeks.
Step-by-step explanation:
Let's assume that the Indian cricket team played x matches after the first two weeks.
We know that the team won 50% of the matches played in the first two weeks. So, out of the 6 matches played in the first two weeks, they won 0.5*6 = 3 matches.
We also know that at the end of the series, their success rate was 75%. This means that out of the total number of matches played in the entire series, they won 75% of them. Let's say the total number of matches played in the series is y. Then, we can write:
Number of matches won = 0.5*6 + x (matches won in the first two weeks + matches won after the first two weeks)
Total number of matches played = 6 + x (matches played in the first two weeks + matches played after the first two weeks)
According to the given information, the success rate at the end of the series was 75%. So we can write:
Number of matches won / Total number of matches played = 75/100
Substituting the values, we get:
(0.5*6 + x) / (6 + x) = 75/100
Simplifying this equation, we get:
12 + 4x = 25 + 3x
x = 13
Therefore, the Indian cricket team played 13 matches after the first two weeks.
limh→0(5e^x−5e^(x+h))/3h
We define ln(x)=int[(1 , x)(1/t)dt], then (ln(x))’=1/x . Define e^x as the inverse of ln(x) .
Then lim [ln(1+x)/x] =lim 1/(1+x) =1 as x approaches to 0 (using the Hp rule). Let ln(1+y)=x then y=e^x-1 and lim[ln(1+y)/y]=lim[x/e^x-1]=1 as x approaches to 0. then limit[(e^h-1)/h]=1 as h approaches to 0 . We have
lim[(5e^x-5e^(x+h))/3h]=(5/3)lim[(e^x-(e^x)(e^h))/h]=(5/3)e^xlim[(1-e^h))/h]=
-(5/3)e^xlim[(e^h-1))/h]=-(5/3)e^x as h approaches to 0.
Refer to the set of data values for Diamonds below
PRICE: 6958,5885,6333,4299,9539,6921,4426,6885,5826,3670,7176,74975170,5547,13596,7521,7260,8139,12196, 14998,9736,9859,12393,25522, 11008,38794,66730,46769,28800,28868
CARATIWEIGHT):1,1,1.01,1.01,1.02,104,104,107,1.07,111,1.12,1 16,1 2,1 23,1.25,129,1.5,1.51,1.67,1.72,1.76,1.8,188,2.03,2.03,2.06,3,4.01,4.01.4.05
COLOR: 3,5, 4, 5, 2, 4, 5, 4, 5, 9,2,5,6,7,1,6,6,6,3,4,8, 5, 6, 2,8,2,1,3,6,7
(a) Use the paired data consisting of the carat weight (x) and the price (y). What is the best predicted price of a diamond with a weight of 1.6 carats?
(b) Use the paired color (x) and the price (y) data. What is the best predicted price of a diamond with a color rating of 37
linear regression equations can be used to accurately predict the price of a diamond given its carat weight or color rating.
By fitting a line to the paired data, the slope of the line can be used to determine the rate of change in price for a given increase in carat weight or color rating. This can then be used to accurately predict the price of a diamond with a given carat weight or color rating.
What is Equation?
An equation is a mathematical statement that states the equality of two expressions. It is made up of two parts—the left side and the right side—that are separated by an equal sign (=). The left side of an equation is made up of terms, which are numbers and/or variables, and the right side is made up of a single number or variable. Equations are used to solve for unknown values in mathematics, science, and engineering.
The best predicted price of a diamond with a weight of 1.6 carats can be found by using a linear regression equation. This equation uses the paired carat weight (x) and the price (y) data to produce a line that best fits the data. The slope of the line will help determine the rate at which the price changes as the carat weight increases. The equation can then be used to calculate the predicted price of a diamond with a weight of 1.6 carats.
The best predicted price of a diamond with a color rating of 3 can be found by using the paired color (x) and the price (y) data. Using the data, a linear regression equation can be used to produce a line that best fits the data. The slope of the line will help determine the rate at which the price changes as the color rating increases. The equation can then be used to calculate the predicted price of a diamond with a color rating of 3.
In conclusion, linear regression equations can be used to accurately predict the price of a diamond given its carat weight or color rating. By fitting a line to the paired data, the slope of the line can be used to determine the rate of change in price for a given increase in carat weight or color rating. This can then be used to accurately predict the price of a diamond with a given carat weight or color rating.
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K In a poll of 514 human resource professionals, 45.5% said that body piercings and tattoos were big personal grooming red flags. Complete parts (a) through (d) below. a. Among the 514 human resource professionals who were surveyed, how many of them said that body piercings and tattoos were big personal grooming red flags? 234 (Round to the nearest integer as needed.) b. Construct a 99% confidence interval estimate of the proportion of all human resource professionals believing that body piercings and tattoos are big personal grooming red flags.
234 of them said that body piercings and tattoos were big personal grooming red flags and the 99% confidence interval is 0.412 to 0.498.
a) Among the 514 human resource professionals who were surveyed, the number who said that body piercings and tattoos were big personal grooming red flags is:
45.5% of 514 = 0.455 × 514 ≈ 234
Rounding to the nearest integer, we get 234.
b) To construct a 99% confidence interval estimate of the proportion of all human resource professionals believing that body piercings and tattoos are big personal grooming red flags, we can use the following formula:
CI = p ± z√(p(1-p)/n)
where p is the sample proportion, n is the sample size, z is the critical value from the standard normal distribution corresponding to the desired confidence level (99% in this case), and √(p(1-p)/n) is the standard error of the proportion.
Substituting the values from the given information, we have:
p = 0.455
n = 514
z = 2.576 (from standard normal distribution table)
Using these values, we can calculate the confidence interval:
CI = 0.455 ± 2.576√(0.455(1-0.455)/514)
≈ 0.412 to 0.498
Therefore, we can be 99% confident that the true proportion of all human resource professionals believing that body piercings and tattoos are big personal grooming red flags lies between 0.412 and 0.498.
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Kylie, a youth leader at a summer camp, is making clear slime for an activity with the kids. She is placing the slime in 2-ounce plastic containers with lids. If Kylie can mix up the slime and fill 75 containers in 50 minutes, how long will it take her to make the slime and fill up 450 of the 2-ounce plastic containers??
A. 6 hours
B. 5 hours
C. 4 hours
D. 9 hours
Answer: B
Step-by-step explanation:
First, you want to find out how many ounces of slime she filled per minute. So 75 containers that are 2 ounces each, 75 x 2 equals to 150 ounces. We know that she has filled 150 ounces in 50 minutes, so we'll divide this to figure out how many ounces she fills per minute. So 150 divided by 50 equals to 3 ounces filled per minute. Now we want to figure out how many ounces she would need to fill up the 450 containers. We'll multiply 450 by 2, which gives 900 ounces. We want to divide 900 ounces by 3 ounces per minute, in order to know how much time it would take to fill it up, which is 300 minutes. Because the answers are in hours, we'll divide 300 by 60 (total number of minutes in 1 hour) and the answer we get is 5. Therefore, it will take Kylie 5 hours to fill up 450 of the 2-ounce plastic containers.
To put it into numbers:
75 x 2 = 150
150 ÷ 50 = 3
450 x 2 = 900
900 ÷ 3 = 300
300 ÷ 60 = 5
(You could also use the total amounts in order to get the answer for this question. We know that it takes 50 minutes to fill 75 containers, so we divide 450 by 75. In turn, we get 6, now we multiply 50 minutes by 6 which still gives us 300 minutes. Divide 300 minutes by 6 and again we get 5 hours.)
In all honesty, this question first confused me when I read it. For example, are we taking into account the time she used to mix the slime into the 50 minutes? However, I thought that something is better than no answer at all, so I tried to work out an answer that was included in the options given (A, B, C, D). But I cannot say with 100% certainty that this may be the correct answer. It's your choice whether you want to use this explanation for your problem, so I sincerely hope that this helped you out.
what is the best measure of sensors to use in the set of data below 12, 8, 15, 45, 7, 13 mean, median, mean or median, mode?
Answer:
The best measure of central tendency to use in a set of data depends on the characteristics of the data and the specific objective of the analysis. Let's examine the given data set: 12, 8, 15, 45, 7, 13.
Mean: The mean, also known as the average, is calculated by summing up all the values in the data set and dividing by the total number of values. The mean is sensitive to extreme values and can be influenced by outliers. In this case, the mean is calculated as (12 + 8 + 15 + 45 + 7 + 13) / 6 = 100 / 6 ≈ 16.67.
Median: The median is the middle value in a data set when the values are arranged in ascending or descending order. The median is not affected by extreme values and is a good measure to use when there are outliers or when the data is not symmetrically distributed. In this case, when the data set is arranged in ascending order, the median is 13, as it is the middle value.
Mode: The mode is the value that appears most frequently in a data set. It is a useful measure when we want to identify the most common value in the data set. In this case, the mode is not applicable as there are no repeated values in the data set.
Based on the characteristics of the given data set, the median is a good measure to use as it is not affected by extreme values and provides a central value that represents the middle of the data set. The mean may be influenced by the outlier value of 45, and the mode is not applicable in this case. So, the best measure of central tendency to use in this data set would be the median.
Congruent angles. Help me solve!
Answer: ∠FGE
Step-by-step explanation:
Congruent: Have the same angle measure
Starting Angle: ∠BGC
Angle Of Congruence: ∠FGE
how long will it take $5000 to grow to $6000 at an annual rate of 9% compounded monthly
Glad for any help, it's a statistics problem and I have the image linked below.
The 95% confidence interval for the mean time for all players is given as follows:
Between 7.14 minutes and 10.74 minutes.
What is a t-distribution confidence interval?The t-distribution is used when the standard deviation for the population is not known, and the bounds of the confidence interval are given according to the following rule:
[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]
In which the variables of the equation are presented as follows:
[tex]\overline{x}[/tex] is the sample mean.t is the critical value.n is the sample size.s is the standard deviation for the sample.The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 10 - 1 = 9 df, is t = 2.2622.
Inserting the data-set into a calculator, the parameters are given as follows:
[tex]\overline{x} = 8.94, s = 2.52, n = 10[/tex]
Then the lower bound of the interval is given as follows:
8.94 - 2.2622 x 2.52/sqrt(10) = 7.14 minutes.
The upper bound of the interval is given as follows:
8.94 + 2.2622 x 2.52/sqrt(10) = 10.74 minutes.
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b: if jen and ricky each randomly select an egg from their farm, who is more likely to select an egg classified as medium
Rick is more likely to select a large egg. Jens probability for a large egg is87.5 ricks is 90.7
Probability is a fundamental concept that gauges the plausibility of an event taking place. It is expressed numerically within the range of 0 to 1, with values corresponding to complete impossibility and absolute certainty respectively.
When probability values take on an exact midpoint value such as 0.5, they indicate equal probabilities for both possible outcomes. Experts use probability models before making significant decisions in fields such as science, engineering, finance, and speculative markets like gambling.
The study of these apprehension methods and their application form the foundation of probability theory, which helps analyze chance events' rules and guidelines.
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There's a train going at 96km/h and another at 109km/h, how long will it take them to pass each other?
The time it would take for the trains to pass each other, would be 58.54 minutes.
How to find the time taken ?The trains were initially 200 km apart and so we need to find the time till they pass each other, with the speeds they are currently going at.
To find this time, we first need to find the combined speeds of the trains to be :
= 96 + 109
= 205 km / h
With the combined speed, the time till they pass each other would be:
= Distance between trains / Combined speed
= 200 / 205
= 58. 54 minutes
= 0. 98 hours
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The time it would take for the trains to pass each other, would be 58.54 minutes.
How to find the time taken ?The trains were initially 200 km apart and so we need to find the time till they pass each other, with the speeds they are currently going at.
To find this time, we first need to find the combined speeds of the trains to be :
= 96 + 109
= 205 km / h
With the combined speed, the time till they pass each other would be:
= Distance between trains / Combined speed
= 200 / 205
= 58. 54 minutes
= 0. 98 hours
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A country with a population of 103 million has 19,261 traffic fatalities. Find the fatality
rate in deaths per 100,000 population.
Select one:
O A. 187 deaths per 100,000 people
O B. 1926 deaths per 100,000 people
O C. 1.87 deaths per 100,000 people
O D. 18.7 deaths per 100,000 people
Answer: C. 1.87 deaths per 100,000 people
Step-by-step explanation:
To find the fatality rate, we need to divide the number of traffic fatalities by the total population and then multiply by 100,000.
Fatality rate = (Number of traffic fatalities / Total population) x 100,000
Plugging in the values given in the question:
Fatality rate = (19,261 / 103,000,000) x 100,000 = 1.87 deaths per 100,000 people.
Therefore, the correct option is C.
The accompanying data represent the percentages of teenagers in various countries that have used certain drugs. Complete parts (a) through (c)
below.
Country
Drug 1, x
Other Drugs, y
A
23
3
B с
17 41
2 21
D52
E
38
15
(=
(Round to two decimal places as needed.)
F
18
9
G
23
15
HS2
5
1
8
NO
2
CI
J
54
32
K
:
H
35
25
a. Determine the correlation coefficient between the percentage of teenagers who have used Drug 1 and the percentage who have used other drugs.
Answer:
-1.82
Step-by-step explanation:
It won't let me write the explanation for some reason. I'll put it in the comments below
how do you find the perimeter of an object
Answer:
width*2 +length *2
Step-by-step explanation:
Amy works in a bakery that bakes all types of breads. She sells a loaf of yeast bread for five dollars and a loaf of brown bread for two dollars. She needs to sell over 100 loaves of bread and make at least $350.
If x represents the loaves of bread sold, and y represents the loaves of yeast bread sold, which of the following graphs represent the situation above?
The equations that represent both scenarios are x + y > 100 and 2x + 5y ≥ 350
How to solve an equation?An equation is an expression that can be used to show the relationship between two or more numbers and variables using mathematical operators.
Let x represents the loaves of bread sold, and y represents the loaves of yeast bread sold.
She needs to sell over 100 loaves of bread, hence:
x + y > 100
Also, she needs to make at least $350, hence:
2x + 5y ≥ 350
Plotting both equations gives the graph attached.
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