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3 years ago

Which scenario represents a proportional relationship?

Mathematics

1 answer:

kirza4 [7]3 years ago

4 0

Answer:

The answer should be B

Step-by-step explanation:

I hope this helps! Let me know if I am wrong.

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What is the area of triangle PQR?

uranmaximum [27]

Answer:

area = 2236 in²

Step-by-step explanation:

area of a triangle = 1/2 b h

b = 86

h = 52

plug in values

area = 1/2 * 86 * 52

area = 2236 in²

5 0

3 years ago

Determine whether the ordered pair is a solution of the linear inequality

katrin2010 [14]

Step-by-step explanation:

So you solve the equation for x and then solve it for y. If the x and y match the given ordered pair then the answer is yes

3 0

3 years ago

To make each costume Rachel uses 6 yards of material and 3 yards of trim supposed to use as a total of 48 yards of material to m

pochemuha

Answer:

24 yards of trim

Step-by-step explanation:

7 0

3 years ago

I need step by step explanation for this!!

Margaret [11]

<h3>Answer: The original number is 57</h3>

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

Explanation:

T = tens digit of original number

U = units digit of original number

"units digit" is the same as "ones digit"

The original number is in the form 10T+U. For example, let's say that T = 3 is the tens digit and U = 1 is the units digit. This means 10T+U = 10*3+1 = 31 is the original number. Though in this example, the digits don't add to 12.

To make the digits add to 12, we have the equation T+U = 12. This solves to U = 12-T which we'll use later.

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

The digits are reversed to get the new number 10U+T and this is 15 times the original tens digit, so

new number = 15*(original tens digit)

10U+T = 15T

from here we plug in U = 12-T which we found earlier. This effectively eliminates or gets rid of the U variable to leave us with T only

10U+T = 15T

10(12-T)+T = 15T ..... replace U with 12-T

which we can now solve for T

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

10(12-T)+T = 15T

120-10T+T = 15T

-9T+120 = 15T

120 = 15T+9T ... adding 9T to both sides

120 = 24T

24T = 120

T = 120/24 .... divide both sides by 24

T = 5

The original tens digit is T = 5

The original units digit is U = 12-T = 12-5 = 7

So the original number is 10T+U = 10*5+7 = 57

Flipping the digits gets us 75 which is 15 times that of the original tens digit of 5. The original number has its digits add to 5+7 = 12. The answer has been confirmed.

6 0

3 years ago

Read 2 more answers

Its pretty straight forward, (Questions in image)

Mama L [17]

2) Find the area of a parallelogram with a height of 8 inches and a base of 14 inches.

A=bh=14·8=112in²

3) Find the surface Area of the rectangular prism with a length of 15 cm, height of 7 cm, and width of 5 cm.

A=2(wl+hl+hw)=2·(5·15+7·15+7·5)=430cm²

4) Find the volume of the following figure:

$V=\frac{lwh}{3} =\frac{16*8*9}{3} =384$

5) You are wrapping a cube shape present that is 9 inches tall. How much wrapping paper will you need to wrap the entire present.

SA = $l*w*h$ = 9x9x9 = 729in²

6) A truck has a trailer that has a length of 13ft, a width of 6ft, and a height of 8ft. What is the volume of the trailer?

$V=whl=6*8*13=624$

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3 0

3 years ago

Read 2 more answers