Question

A baby rhinoceros weighs 120 pounds when born. It gains 3 pounds per day during the first year. How many days will it take the rhinoceros to weigh a total of 219 pounds?

Hint: Use an equation in the form px + q = r to represent the problem in order to solve it. Write the result of the solved equation below.

Answer 1

Let x = number of days. The equation is 3x + 120 = 219.
Solve: 3x = 219 − 120 = 99, so x = 99/3 = 33.

It will take 33 days.