Question

. A rectangle has an area of 112 ft².

The length is 6 more than the width.
What is the width?
A. 20 ft
B. 14 ft
C. 12 ft
D.8 ft
E.6 ft

Answer 1

D) 8ft

Explanation:

Let width=w

Let length=w+6

w(w+6)=112

w^2+6w=112

subtract 112 from both sides

w^2+6w-112=0

factor

(w-8)(w+14)=0

w=8

w=-14

since you can't have a negative length, your answer would be 8