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ladessa [460]
3 years ago
11

The perimeter of a rectangle is 400 meters. The length is 15 meters less than 4 times the width. Find the length and width. (sho

w work)
Mathematics
1 answer:
Anna [14]3 years ago
7 0
L=4*w-15
P=2w+2l=2w+2*(4w-15)=2w+8w-2*15=400
10w-30=400
10w=400+30=430
w=430:10
w=43 m
l=4*43-15=172-15
l=157 m
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