Question

The amount of water that evaporation from a lake in 1 day was about 70 acre feet . which amount is closest to the rate of evaporation per hour

Answer 1

2.916666, which rounnds to 3

Explanation:

Answer 2

2.9167 acre-feet ≈ 3 acre-feet per hour

Explanation:

Data provided:

The amount of evaporation from a lake in 1 day = 70 acre-feet

also,

1 day = 24 hours

Therefore,

the rate of evaporation per hour =
`\frac{\textup{Amount of evaporation}}{\textup{Total time}}`

or

the rate of evaporation per hour =
`\frac{\textup{70 acre-feet}}{\textup{24}}`

or

the rate of evaporation per hour = 2.9167 acre-feet ≈ 3 acre-feet

Hence,

The evaporation rate per hour is closest to 3 acre-feet per hour