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If a rectangle has a length that is three times the width increased by 4. Find the dimensions of both the length and width if the

perimeter of the rectangle is 80 centimeters

User Brittney
by
7.8k points

1 Answer

8 votes

Answer:

width is 9

length is 13

Explanation:

l=3b +4

w=b

(3b+4)2+2b=80

6b+8+2b=80

8b+8=80

8b=80-8=72

b=72/8

b=9

User Mattlondon
by
8.3k points

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