The table below shows how the age of a certain tree is related to the
diameter (width) of its trunk. how old (in years) is a tree whose trunk is 13
inches in diameter?
trunk diameter
(inches)
age
(years)
10
20
5
6
30
40
50
60
answer here

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

nothjing

step-by-step explanation: