Question

. An aquarium contains 50 gallons of water. When the plug is pulled, water drains from the aquarium at a rate of 2 gallons per minute. How many gallons of water still remain in the aquarium after 8 minutes? ​

Answer 1

34 gallons still remain after 8 minutes.

Explanation:

Variable x = gallons of water after 8 mins

2 gallons = 1 min

x gallons = 8 mins

Set up an equation:

2/1 = x/8

Cross multiply:

2 × 8 = 1 × x

16 = x

16 gallons of water are drained after 8 minutes.

Find the difference:

50 - 16 = 34

34 gallons still remain after 8 minutes.

Answer 2

34 gallons

Explanation:

Water in tank = starting amount - rate * time

water in tank = 50 - 2 * time

Let the time = 8 minutes

water in tank = 50 - 2 * 8

= 50 - 16

= 34