A young boy is growing at a rate of 3.5 cm per month. He is currently 90 cm tall. At that rate, in how many months will the boy grow to a height of 132 cm?

Question

Jonathan Cantrell

Mathematics

20 December, 18:40

A young boy is growing at a rate of 3.5 cm per month. He is currently 90 cm tall. At that rate, in how many months will the boy grow to a height of 132 cm?

+5

Answers (2)

Know the Answer?

Mattie Hodge · Answer 1

Mattie Hodge 20 December, 18:50

0

3.5x+90=132

-90 - 90

3.5x=42

x=12

Karlee Stout · Answer 2

Heightnow+heightgrown=132

heightgrown=3.5 times months (m)

heightnow=90

90+3.5m=132

minus 90 both sides

3.5m=42

divide both sides by 3.5

m=12

12 months