Question

A water park has pools, slides, and rides that, in total, make use of 3, point, 1, times, 10, to the power 73.1×10
7
gallons of water. They plan to add a ride that would make use of an additional 2, point, 9, times, 10, cubed2.9×10
3
gallons of water. Use scientific notation to express the total gallons of water made use of in the park after the new ride is installed.

Answer 1

3.10029 × 10^7 gallons

Work:
3.1×10^7 + 2.9×10^3 = 3.1×10^7 + 0.00029×10^7 = (3.1 + 0.00029)×10^7 = 3.10029×10^7 gallons.