Question

The perimeter of a rectangle is 72 centimeters. The base is 2 times the height. What are the dimensions of the rectangle?
a.
h = 9 cm, b = 18 cm
c.
h = 12 cm, b = 24 cm
b.
h = 19 cm, b = 38 cm
d.
h = 10 cm, b = 20 cm

Answer 1

2(l+b) = perimeter
2(x+2x)=72

Answer 2

Translate the expression into a word phrase.

k + 12

A.
a number less than 12

B.
12 more than a number

C.
the product of a number and 12

D.
the quotient of a number and 12

Answer 3

2L+2W=72 cm
L=2W
2(2W)+2W=72
4W+2W=72
6W=72
W=12 cm

L=2W
L=2(12)
L=24 cm

So it's letter C.