The length of a rectangular picture frame is 3 centimeters less than twice the width. the perimeter is 78 centimeters. find the length and width of the picture frame

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asked Sep 15, 2019 175k views

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Nick Vallely · Answer 1 · 2019-09-20T10:55:14+0000

Let the width be x
width = x
length = 2x - 3

Perimeter = x + 2x - 3 + x + 2x - 3 = 6x - 6

6x - 6 = 78
6x = 78 + 6
6x = 84
x = 14 cm

2x - 3 = 2(14) - 3 = 25cm

The width is 14cm and the length is 25cm

The length of a rectangular picture frame is 3 centimeters less than twice the width. the perimeter is 78 centimeters. find the length and width of the picture frame

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