Question

You plant a tree that is 36 inches tall. After one year, the tree is 43 inches tall. Which expression describes the percent of the increase in the tree's height?

Answer 1

Explanation:

36 - 100%

43 - x %

we multiply by cross -> 36 * x = 100 / 43

we should remove '100%' from new value, because we find only increase.. no new value in percent.

x + 100 = (43 * 100)/36

x = 4300/36 - 100

x = 119+ 16/36 -100

x = 19 +4/9