Question

The tropical giant bamboo can grow 11.9 feet in 3 days. What is this rate of growth in inches per hour? Round your answer to the nearest hundredth, and show that the answer is reasonable.

Answer 1

11.9/3 = 3.9666667= feet in one day
3.9666667/24 = 0.16527777778= feet per hour
0.16527777778 X 12 = 1.9833333333 inches per hour

to the nearest hundredth = 1.98 inches per hour

to show that it is reasonable,
inches per hour X number of hours in day X 3days X 12 (inches to equal one foot) = 142.8
1.9833333333 X 24 X 3 X12 = 142.8