A pine tree measured 40 1 / 2 feet tall. Over the next 7 1 / 2 years, it grew to a height of 57 feet. During the 7 1/2 years, wh

Question

3 years ago

13

at was the average yearly growth rate of the height of the tree?

1 answer:

Vlada [557] · Answer 1 · 2022-11-10T04:37:52+03:00

The average yearly growth rate of the height of the tree is 2 1/3 feet

Given:

original height of the pine tree = 40 1/2 feet

Height in next 7 1/2 years = 57 feet

<em>Change in height = Height in next 7 1/2 years - original height of the pine tree</em>

= 57 height - 40 1/2 feet

= 17 1/2 feet

<em>Average growth rate yearly = Change in height / number of years</em>

= 17 1/2 feet ÷ 7 1/2 years

= 35/2 ÷ 15/2

= 35/2 × 2/15

= (35 × 2) / (2 × 15)

= 70/30

= 2 10/30

= 2 1/3 feet

Therefore, the average yearly growth rate of the height of the tree is 2 1/3 feet

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