The width of a rectangle is 3 ft less than the length. The perimeter is 10 ft. Find the length and width

Answer 1

w = L-3

2L + 2w = 10

2L + 2(L-3) = 10

2L + 2L - 6 = 10

4L - 6 = 10

4L = 16

L=4

so the width is w = L-3 = 4-3=1

rectangle 4 by 1