y is directly proportional to x 2 . If y = 12 when x = 2 find x when y = 300

Answers

Answer 1
y ——> x 2

12 —-> 2 power 2

300 —-> ?

300 x 4 over 12 = 100

100= x squared

square root 100 = x = 10

Related Questions

Mario is making 12 dozen cookies. Each dozen requires
3
5
cup of flour. How many total cups of flour does Mario use?

Answers

Answer:

7 1/5 cups of flour

Step-by-step explanation:

divide 3/5 which is 0.6 then multiply that by 12, which is 7.2

then convert that into a fraction which is 7 1/5

Will give 50 points for answer to this question

Answers

im pretty sure its the third option

Select the correct answer from each drop-down menu. The graph represents the piecewise function.

Answers

The functions will be defined as y = x² if 0 ≤ x < 3, y = -x + 10 if 3 < x ≤ 6, and y = x + 2 if 6 ≤ x ≤ 10.

What is a function?

A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.

The graph is given below.

The function can be defined as

The parabolic equation will be

f(x) = x²

The equation of the absolute function will be

f(x) = |x - 6| + 4

Then we have

[tex]f(x) = \left\{\begin{matrix}y=x^2 & 0\leq x < 3 \\\\y=-x+10 & 3 < x\leq 6 \\\\y=x+2 & 6\leq x \leq 10 \\\end{matrix}\right.[/tex]

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if i spent 35 dollars every 2 weeks how much money would i have spent in a year​

Answers

Answer:

$910

Step-by-step explanation:

there are 52 weeks in a year

52/2 = 26

if someone spends 35 every two weeks then

35x26=910

Answer:

840$

Step-by-step explanation:

2*2= 1 month (4weeks)

35*2= 70

70*12 (months of the year) = 840$

math homework help - please


It costs $3 for children and $7 for adults to attend a school game. If 5000 people attended the game and the total taking was 25000, determine no. of children and adults that atteneded

Answers

Answer:

The number of children is 2500 and the number of adults that attended the game is also 2500.

Step-by-step explanation:

Let us consider that, number of children be x and number of adults be y that attend game.

Since, total 5000 people attend the game.

It costs $3 for children and $7 for adults and the total takings at the door was $25000

             

Substitute value of x from equation 1 into equation 2.

         

So that,

Thus, the number of children is 2500 and the number of adults that attended the game is also 2500.

Try this method to answer without algebra.
If everyone paid $3 the 5000 would pay 5000 x $3 = $15000
The extra $10000 must come from the extra $4 the adults pay
$10000 / $4 = 2500
So there must be 2500 adults and 2500 children

Which represents the inverse of the
function f(x) = 4x?
• h(x) = X + 4
O h(x) = x - 4
O h(x) = 3/4x
O h(x) = 1/4X

Answers

Answer:

Step-by-step explanation:

Anne, Bridget, and Sasha shared a sum of money. Anne took 1/3 of the total amount, and Bridget took 1/4 of the remaining money. After both of them had taken their share, Sasha took 1/2 of what was left. If Anne took $160, how much did Sasha take?

Answers

Answer:

180

Step-by-step explanation:

160= 1/3 * total
160*3 = total
480 = total

bridget = 1/4(total)
bridget = 1/4(480)
bridget took  120

Sasha took 1/2 of 360
Sasha took $180.

Find the solution set for |2x-3|=9

Answers

Answer:

x = 6, -3

Step-by-step explanation:

. . . . . . . . . . . . . . . . .

If a multiple-choice test consists of 5 questions, each with 4 possible answers of which only 1 is correct, (a) in how many different ways can a student check off one answer to each question?
(b) in how many ways can a student check off one answer to each question and get all the answers wrong?

Answers

Answer:

  (a)  1024 ways

  (b)  243 ways

Step-by-step explanation:

When answers are independent, the total number of ways all questions can be answered is the product of the number of ways each question can be answered.

__

(a)

The first question can have one answer 4 ways. The second question can be answered 4 ways for each of the ways the first question was answered. That is, the two questions can be answered 4×4 = 16 ways. Similarly, each additional question multiplies the number of ways the questions can be answered by 4.

The 5 questions can be answered 4×4×4×4×4 = 4^5 = 1024 ways.

__

(b)

There are 3 ways to answer the first question incorrectly. Each additional question can be answered incorrectly 3 ways for each of the ways previous questions were answered. The total number of ways all questions can be answered incorrectly is ...

  3^5 = 243

A student can answer all questions wrong in 243 different ways.

Evaluate the expression.

Answers

18 is the answer to this question

Given that the line y=ax+b passes through the points A(0; 3) and B(-2;7), how do I find the values of a and b?

Answers

First you have find the slope (a) in order to find the value of the y intercept (b).

To compute the slope, you simply have to find the difference of y coordinates and divide them by the difference of x coordinates:

a = (y2-y1)/(x2-x1)
a = (7-3)/(-2–0)
a = 4/-2
a = -2

To compute the y intercept denoted by b, we substitute the value of a with -2 in the formula and choose any point (x,y) and substitute their values in the formula as well. Like so:

I choose point A:

3 = (-2)(0) + b
3 = b

A company boss is planning on ordering a gift for each of his employees. He takes a sample of 30 employees in the company and asks them what gift they would like. The table shows the information about his results. Gift Number of employees iPad 12 phone 5 watch 9 voucher 4 There are 110 employees in the company. Work out how many watches should be ordered.​

Answers

Answer:

I think the answer is 33

Step-by-step explanation:

Extremely sorry if it's wrong

If y = –0.96 when x = 2.4, what is y when x = 2.9?

Answers

Answer:

It should be -1.16

Step-by-step explanation:

Hope this helps :)

Find the value of x.
33°
107°
x

Answers

Answer:

140

Step-by-step explanation:

Angles in a triangle add up 180 :

180 = 107 + 33 + y

y = 180 - (107+33)

y = 180 - 140

y = 40

Angles on a straight line add up to 180 so :

180 = x + y

180 = x + 40

x= 180 - 40

x = 140

Hope this helped and have a good day

Answer:

x = 140°

Step-by-step explanation:

Concepts

The Exterior Angle Theorem states that the two remote angles in a triangle is equal to the exterior angle.

Application

In this case, the two remotes angles are 107 and 33°, and the exterior angle is x. Now, all we have to do is just add 107 and 33 to get our answer.

Solution

107 + 33140°

Please please help please please help me please please help please please help me please please help please please help me please please help please please help me please please help please please help me please

Answers

Answer: 2+2= DA ROCK

Step-by-step explanation:

SCAM..... ITS ABOUT DRIVE ITS ABOUT POWER WE STAY HUNGRY WE DEVOURE PUT IN THE WORK PUT IN THE HOUR AND TAKE WHATS OURSSSSSSSSSSSSSSSSSSSSS


YEHHHHHHHH

Nala wants to find out if the quadrilateral shown is a rectangle. Nala's plan: • Find the slopes of all four sides. • See if there are two pairs of equal slopes. • See if there are two pairs of slopes that are negative reciprocals. Will her plan work? Why or why not?

Answers

Checking if the two pairs of slopes are negative reciprocal will help he determine if the lines are perpendicular to each other. Therefore her plan will work.

Proof for a quadrilateral

A quadrilateral are shapes with 4 sides. A rectangle is a quadrilateral with 2 parallel sides.

According to Nala's plan to find out if the quadrilateral shown is a rectangle, she can do the following;

See if there are two pairs of equal slopesSee if there are two pairs of slopes that are negative reciprocal

Checking if the two pairs of slopes are negative reciprocal will help he determine if the lines are perpendicular to each other.  

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Design an instructional activity that could help learners recognise that decimal
fractions can be applied across environmental situations (relating to activities
in real life).

Answers

Fraction refers to a part of a whole; e.g when cup is not completely filled, it covers only a part of the cup

What is fraction?

The term fraction refers to a part of a whole. To design an instructional activity that  could help learners recognize that decimal fractions can be applied across environmental situations, we could look at certain things in the house.

For instance, when cup is not completely filled, it contains water that covers only an fraction of the cup. Also, we could boil a part and not a whole cup of rice. These are all examples of fractions.

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Just a little help :,(

Find the volume of the cone. Round your answer to the nearest tenth. Use 3.14 for T.
9 in.
in³.
3 in.
The volume is about


Answers

Answer = 84.8 cu in.

V= 1/3 x pi x r^2 x height
V= 1/3 x 3.14 x 9 x 9
V = 84.8 cu in.

Two lines are intersecting. What is the value of x?

Answers

Answer:

The correct answer is x = 51.

Step-by-step explanation:

We have been given an image of two intersecting lines. We are asked to find the value of x.

We can see that both angles are supplementary (adding up to 180 degrees), so we can set an equation as:

x + 23 + 2x + 4 = 180

x + 2x + 4 + 23 = 180

3x + 27 = 180

3x + 27 - 27 + 180 - 27

3x = 153

3x/3 = 153/3

x = 51

Therefore, the value of x is 51.

Hope this helps:) Goodluck!

Answer:

Step-by-step explanation:

2x + 4 + x + 23 = 180

3x + 27 = 180

3x = 153

x = 51

A solution contains 8% salt. How much pure water should be added to 25 ounces of the solution to dilute it to a 3% solution? Round to the nearest hundredth if needed.

Answers

41.67 ounce of pure water should be added to 25 ounces of the 8% salt solution to dilute it to a 3% solution

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Let x represent the amount of pure water needed to dilute the solution. Hence:

8% * 25 = 3% * (x + 25)

2 = 0.03x + 0.75

x = 41.67 ounce

41.67 ounce of pure water should be added to 25 ounces of the 8% salt solution to dilute it to a 3% solution

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HELPPPPPPPPP!!!!!!!!!!!

Answers

Hold on ill have it all figured out

Ms. Lui earned an annual income of 775,000, what is the weekly salary?

Answers

Answer:

$14,903.85

Step-by-step explanation:

So, Ms. Lui earns $775,000 each year. To find the weekly salary, we have to divide the annual income by the amount of weeks in a year. There are about 52 weeks in one year. Let's find the weekly salary:

[tex]\frac{775000}{52} = 14,903.85[/tex]

Therefore, Ms. Lui earns $14,903.85 a week.

Hope this helps! If you have questions about my work, please leave them in the comments!

Help please with me math!!

Answers

Answer:

17.3

Step-by-step explanation:

d = √((x2 - x1)^2 + (y2 - y1)^2)

Find the difference between coordinates:

(x2 - x1) = (-9 - 8) = -17

(y2 - y1) = (-6 - -3) = -3

Square the results and sum them up:

(-17)^2 + (-3)^2 = 289 + 9 = 298

Now Find the square root and that's your result:

Exact solution: √298 = √298

Approximate solution: 17.2627

The product of two numbers is 5, if their sum is 9/2. What are the numbers? with detail explaniation

Answers

Answer: The numbers are 2 and 2.5

Explanation:

Let one number be "x" and another "y", Note: 9/2 = 4.5 [in decimal form]

[tex]\rule{185}{2}[/tex]

Their product :

[tex]\hookrightarrow \sf x \ \cdot \ y = 5[/tex]    

[tex]\hookrightarrow \sf x = \dfrac{5}{y} \quad \ \ \leftarrow \quad equation _1[/tex]

Their sum :

[tex]\hookrightarrow \sf x + y = 4.5[/tex]

[tex]\hookrightarrow \sf x = 4.5-y \quad \ \ \leftarrow \ equation_2[/tex]

Solve them simultaneously:

[tex]\rightarrow \sf 4.5 - y = \dfrac{5}{y}[/tex]

cross multiply

[tex]\rightarrow \sf y(4.5 - y) = 5[/tex]

distribute inside parenthesis

[tex]\rightarrow \sf -y^2 +4.5y - 5 = 0[/tex]

multiply by -1

[tex]\rightarrow \sf y^2 -4.5y + 5 = 0[/tex]

factor them out

[tex]\rightarrow \sf ( y - 2.5)(y - 2)= 0[/tex]

set to 0

[tex]\rightarrow \sf y = 2.5, \ 2[/tex]

Another number:

When one number is 2.5, then another: 4.5 - 2.5 = 2

When one number is 2, then another: 4.5 - 2 = 2.5

Hence, the numbers are 2.5 and 2

Check:

Product: 2 × 2.5 = 5Sum: 2 + 2.5 = 4.5 or 9/2

The numbers obtained by the given condition that the product of two numbers is 5 if their sum is 9/2 will be x =( 2 or 5/2) and y = ( 2 or 5/2).

How to form an equation?

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

In other words, an equation is a set of variables that are constrained through a situation or case.

Let's say the first number is x and the second is y then

Product xy =  5

Sum x + y = 9/2

substitute y = 9/2 - x into first

x( 9/2 - x) = 5

2x² - 9x + 10 = 0

2x² -5x -4x + 10 = 0

x( 2x - 5 ) -2( 2x -5 ) = 0

(x -2)(2x -5) = 0

x =2 and x = 5/2

Corresponding to x y will be y = 2 and y = 5/2.

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What is the surface area of the rectangular prism
represented by the net shown?
6 in.
1.5 in.
1.5.in.

Answers

#2

The shape can be cut into four rectangles and two squares.

Total surface area:

⇒ four rectangles + two squares

⇒ 4(Length × Width) + 2(side × side)

⇒ 4(6 × 1.5) + 2(1.5 × 1.5)

⇒ 36 + 4.5

⇒ 40.5 inch²

Therefore, the surface area of the rectangular prism is 40.5 inch²

#3

The polygons that would be used in this net surface area are:

rectangle

✔ square

Answer:

40.5 in²

Step-by-step explanation:

Formula applied :

Surface Area (rectangular prism)

⇒ 2(Length × Width + Width × Height + Length × Height)

=============================================================

Given :

⇒ Length = 6 inches

⇒ Width = 1.5 inches

⇒ Height = 1.5 inches

============================================================

Solving :

⇒ Surface Area = 2(6 × 1.5 + 1.5 × 1.5 + 6 × 1.5)

⇒ Surface Area = 2(9 + 2.25 + 9)

⇒ Surface Area = 2 × 20.25

⇒ Surface Area = 40.5 in²

Find the value of n in the following
equation. Give your answer as a
decimal.
n+3.1:6.4= 96

Answers

N+3.1/ 6.4= 96
N= 95.515625

A recipe for trail mix calls for 234
2
3
4
cups of peanuts, 123
1
2
3
cups of cashews, and 116
1
1
6
cups of almonds.
How many cups of nuts are used in all?

Answers

It would be three nuts

Solve for x
10
*
90⁰
26

Answers

Answer:

x=24

Step-by-step explanation:

x=√(26)²-(10)²

x=√676-100

x=√576

x=24

Jasmine played in a basketball tournament. The ratio of the number of baskets she missed during the tournament to the number of baskets she made is 3:8. If Jasmine missed 9 baskets during the tournament, how many baskets did she make? Draw a diagram to demonstrate how you found your answer.

Answers

By using the given ratio, we will conclude that she made 24 baskets.

how many baskets did she make?

We know that the ratio of the number of baskets she missed to the number of baskets she made is 3:8.

This means, for each 3 missed baskets, she made 8.

Here we know that she missed 9. If we divide that by 3, we get:

9/3 = 3.

This means that she missed 3 baskets 3 times. And for each one of these 3 times she makes 8 baskets (for the given ratio).

Then we conclude that she makes 8*3 = 24 baskets.

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Please help me, I will give brainliest! :)

Answers

Answer:

5 + 24x

Step-by-step explanation:

Given phrase - Five more than the product of 24 and a number.

In the given phrase, the word "more" means "addition". Therefore,

⇒ 5 + than the product of 24 and a number

The word "product" defines multiplication between two numbers. In this case, the product of 24 and a number is 24(number).

⇒ 5 + 24(number)

The question stated to use the "n" to represent the unknown number. Let the unknown number be known as "n".

5 + 24n

Therefore, the expression is 5 + 24n.

----------------------------------------------------------------------------------------------------------------

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