Question

during a hot summer week, the water level in Wei's pool decreased by 1.9 centimeters. Wei added water to the pool, increasing the level by 3.5 centimeters. During the next week, the water level increased by 2.4 centimeters. How does the new water level compare to the original water level? Show your work.

Answer 1

In total, the water level in Wei's pool increased by four centimeters. first, you would take negative one and nine-tenths, then you would add the three and one-half increase. This would give you one and six-tenths. You would then also add the two and four-tenths increase, leaving you with four.