Problema Solution
When Derek planted a tree it was 36 inches tall. The tree grew 1 and one fourth inches per year. The tree is now 44 and three fourth's tall. How many years ago did Derek Plant the tree?
Answer provided by our tutors
The tree grew by 44.75 - 36 = 8.75 inches. Since it grows by 1.25 inches per year, to calculate the number of years we divide the amount grown by the growth rate to get
8.75/1.25 = 7
It has been 7 years since Derek planted the tree