Grandpa ernie is shrinking! Over the past 4 years, his hight decressed by a total of 2.4cm. It decresed by the same amount each year. What was the change in grandpa ernies hight eac year?

Answer: 0.6 cm

Step-by-step explanation:

Given : Over the past 4 years, Grandpa Ernie's height decreased by a total of 2.4 cm.

If the height is decreased by the same amount each year.

Then, the change in Grandpa Ernie's height each year will be =

Total decrease in height : 4

= 2.4 cm : 4 = 0.6 cm

Hence, the change in Grandpa Ernie's height each year = 0.6 cm