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A given rectangle is twice as wide as it is tall. It has a perimeter of 138 inches. How many inches tall is it? How many inches wide is it? Show your mathematics and explain your process for finding your
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A given rectangle is twice as wide as it is tall. It has a perimeter of 138 inches. How many inches tall is it? How many inches wide is it? Show your mathematics and explain your process for finding your answer.

-Please help quickly
-Thank you

User Avtar Guleria
by
7.5k points

2 Answers

2 votes
Length is 23in and width is 46in
User Giorgos Kartalis
by
7.4k points
4 votes
length = x
width = 2x
perimeter = 138in

in order to find perimeter you add length and width twice, so;

2(2x + x) = 138
2(3x) = 138
6x = 138
x = 23

since x = 23;

the length is 23in and the width is 46in
User Sam San
by
7.1k points
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