Question

Samantha measured 40 1/2 inches. Over the next 5 1/2 years, she grew to a height of 57 inches. During the 5 1/2 years, what was the average yearly change in Samantha's height?

Answer 1

Answer:3 in. per yr

Step-by-step explanation:

Present height of Samantha is $40\frac{1}{2}=\frac{81}{2}$

After next $5\frac{1}{2} years i.e. \frac{11}{2} years$

she grew to $57\ inches$

Increase in her height$=57-\frac{81}{2}=16.5\ inches$

Increase in height per year is $=\frac{16.5}{5.5}=3\ in.\ per\ year$