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The length of a rectangle is 3 less than twice the width if the perimeter is 30 find the length and width
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The length of a rectangle is 3 less than twice the width if the perimeter is 30 find the length and width

User Dpp
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1 Answer

3 votes
Let x = width
2x-3= length

2W + 2L = Perimeter
2(x) + 2(2x-3) = 84
2x+4x-6=84
6x-6=84
6x-6=84+6
6x=90
x=15 ft Width
2x-3 = 2*15-3 = 27 ft Length


Check: 2*15 + 2*27
30 +54
84 It checks!!

I hope this helped!
User Adolfo Garza
by
8.1k points
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