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lawyer [7]
3 years ago
15

The length of a rectangle is 3 feet more than 5 times its width. The perimeter of the rectangle is 42 feet.

Mathematics
1 answer:
poizon [28]3 years ago
6 0

42 = 2(W+L)

21= (W+L)

L= 3+5W)

21= W +(3+5W)

21= 3+6W

21-3=6W

18=6W

W=18/6

=3

Answer:

w = PERIMETER/2 - LENGTH

<u>w = 42/2 - (3+5w)</u>

PS. I THINK THIS IS RIGHT. NOT TOO SURE, BUT MOST LIKELY.

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\large\bf{\underline{To \:prove :}}

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\large\bf{\underline{In \: triangle \: ABD\:and\: triangle\:ADC}}

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