Consider the following system of equations. 2x + 3y = 12 -4x + 5y = -4 Which of the following equations could be used to create an equivalent system (a system with the same solution)? Select all that apply.
A. -8x + 10y = -4
B. -2x + 8y = 8
C. 6x + 9y = 36
D. 6x - 2y = 8
E. x + 3/2y = 6

Answers

Answer 1

Answer:

b

Step-by-step explanation:

 -2x+8y=8

Answer 2
The answer is
B. -2x + 8y = 8

Related Questions

Find the LCM of 6 and 15.
A) 6
B) 15
C) 30
D) 90

Answers

Answer:

30

Step-by-step explanation:

the answer is 30 because if you count by 6 it would go 6,12,18,24,30,36,42 and if you go by 15 it would be 15,30,45,60,75,90..... and the only number that you see twice is 30 so the answer would be 30. Hope this helped...

The answer to your question is 30

GIVING BRAINLIEST
Phillip is rolling two number cubes. How many different ways can he roll the number cubes and get a sum of 5?

A) 3
B) 4
C) 5
D) 6

Answers

It’s B - 4 your welcome ☺️☺️

PLASE HELP!!!!! IM DESPERATE

Answers

Answer: 1 is C 2 is F

Step-by-step explanation:

yeah

To pass her test, Tori needs to answer at least 65% of the questions correct. If there were 60
questions and she got 42 correct, did she pass? All work MUST be shown to justify your
answer.

Answers

1) change 65% to a decimal = .65

2) .65 • 60 = 37.2 questions need to be right

3) since she got 42 correct, that is greater than 37.2, so she passed.

OR

1) 42/60 = 0.7

2) 0.7 to a percent = 70%

3) since she got a 70% on the test, she passed.

Step-by-step explanation:

To obtain score of 80% on entire exam means the student have to answer

(80/100)×80 = 64 correct answers

Student have already answered 75% of the first 60 questions correctly meaning

(75/100)×60=45 correct answers from first 60 questions

Remaining correct answers s/he have to answer

64-45=19

So from remaining 20 questions s/he have to answer 19 correct questions that is

20 × (x/100) = 19

x = 19 ×(100/20)

x = 95%

20 points :) Select the favorable outcomes for rolling doubles.
(1-1) (2-2) (3-3) (4-4) (5-5) (6-6)
(5-1) (5-2) (5-3) (5-4) (5-5) (5-6)
(1-1) (1-2) (1-3) (2-1) (2-2) (3-1)
(1-3) (2-3) (3-1) (3-2) (3-4) (3-5) (3-6) (4-3) (5-3) (6-3)

Answers

Answer: A. (1-1), (2-2), (3-3), (4-4), (5-5), (6-6)

Step-by-step explanation:

Doubles are any pair of numbers where the outcomes are the same. There are 36 possible outcomes, and 6 of them are doubles since they have the same numbers. For example, (1-1), also known as snake eyes, are doubles since a 1 is rolled on each die. Therefore, the answer is A.

Answer:

(1-1), (2-2), (3-3), (4-4), (5-5), (6-6)

Step-by-step explanation:

(1-1), (2-2), (3-3), (4-4), (5-5), (6-6)

Dont guess!
I will mark brainliest if its correct!

Answers

Answer:

C

Step-by-step explanation:

Try out the possibilities:

18/-2=-9

12/-2=-6

-6/3=-2

-6/-2=3

12/3=4

18/3=6

-9,-6,-2,-3,4,6

Hope this helps !

Find the area of the shaded region.

Answers

Answer:

75m2

Step-by-step explanation:

Usually, we would subtract the area of a smaller inner shape from the area of a larger outer shape in order to find the area of the shaded region.

The area of the shaded region is the difference between the areas of the rectangle and the square. The dimensions of the rectangle are 6 by 8 and so the area is 6 times 8, that is 48 square units. Each side of the square measures 2 units and so the area is 2 times 2, that is 4 square units.

The answer is 75m2 Hope it helps

Pls help

This figure consists of a rectangle and semicircle.


What is the perimeter of this figure?


Use 3.14 for pi.


60.84 m


72.84 m


79.68 m


98.52 m

Answers

Perimeter of figure = 3 sides of rectangle + perimeter of semi-circle.

3 sides of rectangle = 15 + 12 + 15 = 42

Perimeter of semi-circle = πr = 3.14 * 6 = 18.84

In short, Your Answer would be: 42 + 18.84 = 60.84 m

Hope this helps!

Find the surface area of the square pyramid shown below.

Answers

The area is ≈378.57.
the surface area is 378.57

What is the exact circumference of a circle that has a radius of 10 cm?

Answers

Answer:

C = 20π cm

Step-by-step explanation:

If you want the "exact circumference," use π instead of the usual approximation 3.14 or 3.14159.

Here the circumference is C = 2π(10 cm), or C = 20π cm.

The exact circumference is 62.83 cm.

PLZZZ help with this its pretty simple!

Answers

Answer:

It should be D, [tex]x^4 - 2x^3 + 7x^2 -12x - 4[/tex]

Step-by-step explanation:

Since, the equation given in the question is the factored form of the equation D. It can be solved using FOIL (First Outside Inside Last):

x * x³ = [tex]x^{4[/tex]

x * 7x = 7x²

x * 2 = 2x

-2 * x³ = -2x³

-2 * 7x = -14x

-2 * 2 = -4

This all would add up to ⇒ [tex]x^{4}[/tex] - 2x³ + 7x² + (-14x + 2x) -4

Simplifying the parenthesis further would give the option D as the answer.

MATH SMARTIES I WILL GIVE BRAINLIEST PLEASE GIVE EXPLINATION THE HWERK IS PERCENTS

Answers

Answer:

a. 28

b. 6.5

c. 30

Step-by-step explanation:

1% = 80÷100

35% = 0.8×35

1% = 0.65

0.65 × 10 = 6.5

1% = 0.5

60% = 0.5×60

Answer:

28

6.5

30

another way you can get these answers is by cross multiplying. In order to do that you need to identify the percent, the whole (of), and the part (is). In identifying the whole and the part, look for the word is, and the word of. The number that is associated with is either the part or the whole. (There is 6 out of 80, what is the percentage?) always set the percentage out of a hundred.

So from there we set up the proportion:

ONE

(we don't know the part in any of them)

X/80=35/100 (cross multiply by putting the numbers on top of each other for the fractions)

TWO

X/65=10/100

THREE

X/50=60/100

Hope this helps, have a good day and remember to be tiger fierce!! :) (also, sorry that it is late.)

For each number, name its opposite.
a. -5
b. 28
C. -10.4
d. 0.875
e. O
f. -8,003

Answers

A. 5 B. -28 C. 10.4 D. -0.875 E. -0 F. 8,003

Constant rate of change please helpppp

Answers

Answer:

25

Step-by-step explanation:

please mark brainlest :D

Please Show work and explain.

1. The enrollment in dance class is currently 80 students and is increasing at a rate of 4 students per term. The enrollment in choir is 120 students and is decreasing at a rate of 6 students per term. After how many terms will the number of students in dance equal the number of students in choir? How many students will be in each class?

2. Horizon Phone Company charges $15 a month plus 10 cents per text. G-Mobile charges a flat rate of $55 per month with unlimited texting. At how many texts would the two plans cost the same? Which plan is the better deal if you send 200 texts per month?

Answers

Answer:

1. 4 terms

2a. 400 texts

2b. Horizon phone company

Step-by-step explanation:

1. 80 + 4 x 4 = 96

120 - 6 - 6 - 6 - 6 = 96

2a. 55-15=40x10=400

2b. You need 400 texts to eaven out for g mobile.

Please help! this is the last question :)

Answers

The answer is B because 3 divided by 1/5 is 15. So 15 times 1/5 equals 3.

A = {x | x <15, x ϵ A} and B = {2, 3, 5, 7, 9, 11, 13, 17}. The results of A - B are

Answers

Answer:

All answers here: https://www.cimt.org.uk/projects/mepres/step-up/mepanswers.pdf

Sarah is on a 400 mile road trip. She has 114 miles left to travel. Her vehicle gets about 22 miles per gallon. She wants to know how many gallons of gasoline she has used.

Hilary and William both found the number of gallons of gasoline Sarah used on her trip. They each used a different method to solve the problem. Which statements are true? Check all that apply.

Answers

Answer:

13 gallons

Step-by-step explanation:

Answer:

C. They both subtracted 114 from 400

D. The difference of 114 fro 400 represents the number of miles Sarah has traveled so far

Find the the Unknown sides (please help)

Answers

Answer:

10) x = 8.12

12) x = 5.5

Step-by-step explanation:

10) Since the leg adjacent to the angle is given and the leg opposite to the angle needs to be figure out the Tangent ratio will be used which states Tan(32°) = [tex]\frac{x}{13}[/tex] and simplified, will give the answer 8.12 to the nearest hundreths.

12) The leg opposite to the right angle is given which means that its the hypotenuse. The hypotenuse is given and the side adjacent to the angle needs to be figured out so Cosine ration will be used. Which states; Cos(60°) = [tex]\frac{x}{11}[/tex]. Simplified further will give the value of 5.5 exact.

Hope this helped, Good Luck!

ANSWER:
X=8.12
X=5.5

Please mark brainliest if this helped:)

Question 1 (4 points)
(07.07)
True or False?

When Samantha includes more batteries in her project, the current in her project increases. Current is the independent variable in this situation. (4 points)

True
False
Question 2 (4 points)
(07.07)
Byron can earn money for the lollipops he sells. Which of the following statements describes the variables in this situation correctly? (4 points)

a
The amount of money earned is the dependent variable because it affects the number of lollipops sold.

b
The number of lollipops sold is the dependent variable because it affects the amount of money earned.

c
The amount of money earned is the independent variable because it affects the number of lollipops sold.

d
The number of lollipops sold is the independent variable because it affects the amount of money earned.

Question 3 (4 points)
(07.07)
Ethan's bus is traveling at a speed of 35 miles per hour. If m represents the distance the bus has traveled and n represents the time it has spent traveling, which of the following equations shows the relationship between m and n? (4 points)

a
m = 35n

b
n = 35m

c
m = 35 + n

d
n = 35 + m

Question 4 (4 points)
(07.07)
It costs $1.58 to buy a bag of popcorn. Which of the following equations shows the amount of money needed, z, to buy n bags of popcorn? (4 points)

a
z = 1.58 + n

b
n = 1.58 + z

c
z = 1.58n

d
n = 1.58z

Question 5 (4 points)
(07.07)
James built a small electric car and recorded the distance it traveled. The table below shows the distance traveled (n) during the first 4 seconds after starting (f).

Elapsed Time
(seconds) Distance Traveled
(feet)
1 6.2
2 12.4
3 18.6
4 24.8
Which of the following equations represents the relationship between the distance traveled and the elapsed time? (4 points)

a
f = 6.2 + n

b
n = 6.2 + f

c
f = 6.2n

d
n = 6.2f

Answers

Answer:

LOOK BELOW

Step-by-step explanation:

Question 1 is false and question 2 is true.

hope this helps and add me!

Contractionary fiscal policy is used to __________.
A.
increase the amount of money in the economy
B.
decrease the amount of money in the economy
C.
decrease the money in the economy, then increase it
D.
increase the money in the economy, then decrease it

Answers

Answer:

to fix a expansionary or inflationary period

I think it is C. Decrease the money in the economy, then increase it

Please help will give brainliest

Answers

Answer: 69 cents

Step-by-step explanation:

First you find the area of the circle (A = radius squared * pi) then you multiple the are by 5.5. That will give you the total volume of the can then to find what profit from the can you would multiple the volume by .01 to get .69.

Answer:

Rounded to nearest hundred

Here we will tell you what 69 is rounded to the nearest hundred and also show you what rules we used to get to the answer.

Remember, we did not necessarily round up or down, but to the hundred that is nearest to 69.

First, 69 rounded to the nearest hundred is:

100

When rounding to the nearest hundred, like we did with 69 above, we use the following rules:

A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.

B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.

C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.

SO IT IS 100

But if it was nearest tenth that would be 70

Step-by-step explanation:

What is the volume of the cylinder and i need how you got the answer plz. Thank you

Answers

Answer:

471.24 inches is the volume of the cylinder.

Basically, since the diameter of the cylinder is 10 inches the radius will be 5 inches.

The formula to figure out the volume of a cylinder is V=πr2h.

So using that formula the volume of the cylinder is 471.24 inches.  

Multiply 150 by the substitute your teacher instructed you to use for Pi. The answer will vary, but should be around 471.

V = Pi*R^2*H
V = Pi*5^2*6
V = Pi*25*6
V = Pi*150

Find the perimeter and the area of the polygon with the given vertices.

T (2,7), U (2,9), V (5,9), W (5,7)
The perimeter is __ units.

The area is ___ square units.

Answers

Answer:

Step-by-step explanation:

TU , UV , VW, TW are the sides

As points T and U have same x-coordinate, length of TU will be given by the difference of y-coordinate

TU = 9 - 7 = 2 units

As points U and V have same y-coordinate, length of UV will be given by the difference of x-coordinate

UV = 5 - 2 = 3 units

As points V and W have same x-coordinate, length of VW will be given by the difference of y-coordinate

VW = 9 -7 = 2 units

As points W and T have same y-coordinate, length of WT will be given by the difference of x-coordinate

WT = 5 - 2 = 3 units

TU = VW = 2 units

UV = WT = 3 units

So, TUVW is a rectangle

Area = length *width = 3* 2 = 6 square units

Perimeter = 3 + 2 + 3 + 2 = 10 units

I have no idea what this is

Answers

Answer:

4cm 6cm 10cm

Step-by-step explanation:

it's very easy you just need to use c squared equals a squared plus b squared

A garden in the shape of a trapezoid has an area of 44.4 square meters. One base is 4.3 meters and the other base is 10.5 meters long. The height of the trapezoid is the width of the garden. How wide is the garden

Answers

Answer:42.750

Step-by-step explanation:

12 times 11.4 times 25 times 12.5 is 42.750

15^4-10+36/10=? can someone help me with this?

Answers

Answer:

5065.1

Step-by-step explanation:

To go down the line, you need to do the 15 x 15 x 15 x 15 (15^4), in which equals 50,625. Then, 50,625 - 10 which equals 50,615. Next, 50,615 + 36 which equals 50,651. Finally, you would need to do 50,651 ÷ 10. Making it *5065.1*

Cindy took her cousins to a Hornets game. She spent $180. Twenty percent was for food. How much money was not spent on food

Answers

Answer:

                                                         

Step-by-step explanation:

36$

$36.
I need 20 characters

What is (-2, 5) and (2, 1) written in slope intercept form? Thank you!

Answers

Answer:that would be y=-1+3

Step-by-step explanation:

Answer:

The answer would be y = -1 + 3.

What is the lower quartile (q1) of the box plot below? PLEASE HELP ASAP

Answers

Answer:

24.5

Step-by-step explanation:

The lower quartile is the first side of the box. If u look on the line, the end of the box is between 24 and 25. Hope this helps!

Answer: 24.5

     

Step-by-step explanation: Hope this helps!!

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