The area of a rectangle is 72cm^2. The length, l, of the rectangle is 6 cm longer than the width, w.

What is the width of the rectangle?

A.) 10cm

B.) 8cm

C.) 6cm

D.) 2cm

Question

Noe Montoya

Mathematics

19 July, 20:00

The area of a rectangle is 72cm^2. The length, l, of the rectangle is 6 cm longer than the width, w.

What is the width of the rectangle?

A.) 10cm

B.) 8cm

C.) 6cm

D.) 2cm

+4

Answers (2)

Know the Answer?

Anabel Lyons · Answer 1

A + L * W

A = 72

L = W + 6

72 = W (W + 6)

72 = W^2 + 6W

W^2 + 6W - 72 = 0

(W + 12) (W - 6) = 0

W + 12 = 0

W = - 12 ... not this because it is negative

W - 6 = 0

W = 6 < = = = width is 6 cm

L = W + 6

L = 6 + 6

L = 12 cm ... length is 12 cm

Howe · Answer 2

The answer is C, because 6*2 = 12 and to get to 72 the closet answer is 6

The area of a rectangle is 72cm^2. The length, l, of the rectangle is 6 cm longer than the width, w.What is the width of the rectangle?A.) 10cmB.) 8cmC.) 6cmD.) 2cm

The area of a rectangle is 72cm^2. The length, l, of the rectangle is 6 cm longer than the width, w.

What is the width of the rectangle?

A.) 10cm

B.) 8cm

C.) 6cm

D.) 2cm