Question

The ratio of the perimeters of two rectangles is 5 to 8. The perimeter of the larger rectangle is 72 inches. What is the perimeter of the smaller rectangle?

A.
115.2 inches

B.
45 inches

C.
40 inches

D.
16.4 inches

Answer 1

@AnswerMyQuestions

Answer 2

@Conqueror

Answer 3

@iGreen

Answer 4

LOL CROSS MULTIPLY

Answer 5

how would i set that up?

Answer 6

\[\frac{8}{5}=\frac{x}{72}\] then cross multiply lol

Answer 7

ok one sec

Answer 8

WHAT.

YOU HYPOCRITE.

Answer 9

just kidding never cross multiply

Answer 10

\[\frac{8}{5}=\frac{x}{72}\iff x=\frac{72\times 8}{5}\]

Answer 11

\(\color{blue}{\text{Originally Posted by}}\) @satellite73
\[\frac{8}{5}=\frac{x}{72}\] then cross multiply lol
\(\color{blue}{\text{End of Quote}}\)

This is how you set it up.

Cross multiplying gives us:

8 * 72 = 5 * x

Answer 12

oh

Answer 13

avoid cross multiplying whenever possible
why multiply and then undo it by division?

Answer 14

i dont know

Answer 15

8*72=576

Answer 16

i wrote the answer above, all you need to do is compute it

Answer 17

115.2