Math 20 Math help Question below?

Science & Mathematics by Anonymous 2018-07-14 18:38:26

Social Science

2 answers

The length of a rectangle is 6 cm more than the width, and the area is at least 40cm2. What are the possible dimensions of the rectangle?

Anonymous

(w + 6)w = 40 w^2 + 6w - 40 = 0 (w + 10)(w - 4) = 0 l = 10 cm, w = 4 cm.
Anonymous

The dimensions of the rectangle are 10 cm by 4 cm Check: 10*4 = 40 square cm