Question

The perimeter of a rectangular pool is 580 yd if the length is 30 yd less than three times the width find the length and the width

Answer 1

Explanation:

2 L + 2 W = 580

W = L - 30

2( L - 30) + 2 L =580

2L - 60 + 2 L =580

4 L = 640

L = 160

W = 160-30= 130

160 × 2 + 130 × 2 = 580