Question

Please help!

the length of a rectangle is represented by 5x - 7 and its width by 3x + 2. find its dimensions of the perimeter is 70 inches

Answer 1

Explanation:

we have a rectangle, and the perimeter P=70

P=2L+2W

P=2(5x-7)+2(3x+2)=10x-14+6x+4=16x-10

16x-10=70

16x=70+10=80

16x=80

x=5

L=25-7=18

w=15+2=17

Answer 2

l = 18

w = 17

Explanation:

2(5x-7) + 2(3x+2) = 70

x = 5

5(5)-7= 18

3(5) + 2 = 17