The perimeter of a rectangle is 120 centimeters. The base is 3 times the height. What are the dimensions of the rectangle?

a.

h = 9cm, b = 18 cm

c.

h = 15 cm, b = 45 cm

b.

h = 19 cm, b = 57 cm

d.

h = 10 cm, b = 15 cm

Question

Mathematics

Franklin Pearson

4 May, 22:13

The perimeter of a rectangle is 120 centimeters. The base is 3 times the height. What are the dimensions of the rectangle?

a.

h = 9cm, b = 18 cm

c.

h = 15 cm, b = 45 cm

b.

h = 19 cm, b = 57 cm

d.

h = 10 cm, b = 15 cm

+3

Answers (2)

Know the Answer?

Kareem Molina · Answer 1

The answer is C. h = 15 cm, b = 45 cm

Cesar Dorsey · Answer 2

P=2 (L+W)

120=2 (L+W)

divide by 2

60=L+W

base=L

height=W

L is 3 times W

L=3W

60=3W+W

60=4W

divide by 4

15=W

sub back

L=3W

L=3 (15)

L=45

15 by 45

the 2nd option (yo messed up with the lettering of choices, a, c, b, d)

The perimeter of a rectangle is 120 centimeters. The base is 3 times the height. What are the dimensions of the rectangle?a.h = 9cm, b = 18 cmc.h = 15 cm, b = 45 cmb.h = 19 cm, b = 57 cmd.h = 10 cm, b = 15 cm

The perimeter of a rectangle is 120 centimeters. The base is 3 times the height. What are the dimensions of the rectangle?

a.

h = 9cm, b = 18 cm

c.

h = 15 cm, b = 45 cm

b.

h = 19 cm, b = 57 cm

d.

h = 10 cm, b = 15 cm