Question

The length of a rectangle is 4 times its width and the perimeter is 150 feet.

What is the width of the rectangle?

A.
75 feet

B.
60 feet

C.
30 feet

D.
15 feet

Answer 1

@zzumfelde009

Answer 2

set up an equation

w = width
l = length

you are told the length is 4 times the width

so l = 4w

then the perimeter

P = 2 l + 2w

when you substitute is

150 = 2(4w) + 2w

or

150 = 10w

now solve for w.

Answer 3

sooooo... what the width? O-O

Answer 4

well just solve the equation

150 = 10w

Answer 5

how?

Answer 6

d

Answer 7

just set up an equation in terms of some width w. For 1) suppose the width is w and the length is 4w. Since the perimeter of the rectangle is 150 feet, we have 2(w + 4w) = 150 --> 10w = 150 --> w = 15. The width is 15

Answer 8

its D? thx

Answer 9

yep

Answer 10

thx

Answer 11

to solve the equation

150 = 10w

divide both sides of the equation by 10