Question

You

have a 10 gallon fish aquarium
and are doing a water change. You are
removing .25
gallons per minute. How
much time will it take to
remove
Half the water?

Answer 1

20

Explanation:

look up

Answer 2

.25(4) = 1 gallon

.25(8) = 2 gallons

.25(12) = 3 gallons

.25(16) = 4 gallons

.25(20) = 5 gallons

it would take 20 minutes to remove half the water (aka 5 gallons)