Question

Use this chart to help solve the problem.

Tonya's age (yr.)

Tonya's height (in.)

3

36.8

4

40

5

41.25

6

45

7

48.0

8

51.5

Tonya grew 2.25 more inches before her 9 year height was recorded. What is her height at age 9

written with the correct number of significant digits?

Answer 1

Tanya's height at age of 9 is 53.75 inches

Explanation:

Tonya's age (yr.) Tonya's height (in.)

3 36.8

4 40

5 41.25

6 45

7 48.0

8 51.5

Tanya's height at the age of 8 = 51.5

We are given that Tonya grew 2.25 more inches before her 9 year height was recorded.

So, Tanya's height at age of 9 = 51.5+2.25

Tanya's height at age of 9 =53.75 inches

Hence Tanya's height at age of 9 is 53.75 inches