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The length of a rectangle is 6 times longer than the width. The perimeter is 42 what is the width

Sagot :

Anijlinidn
perimeter = length + length + width + width
if the perimeter is 42 then:
42 = length + length + width + width

if the length is 6 times the width, then
6 x width = length

42 = (6 x width) + (6 x width) + width + width
(i'm just going to start using w to represent width to make it easier

42 = 6w + 6w + w + w
combine all the w's
42 = 14w
divide both sides by 14
w = 3

the width is 3

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