Two pools are being drained. To start, the first pool had 3300 liters of water and the second pool had 3696 liters of water.

Question

Water is being drained from the first pool at a rate of 24

 liters per minute. Water is being drained from the second pool at a rate of 35 liters per minute.

Let x be the number of minutes water has been drained.

(a) For each pool, write an expression for the amount of water in the pool after x minutes

(b) Write an equation to show that the two pools have the same amount of water.

Answer 1

A) First pool starts with 3300 and is losing water at 24 liters per minute so we can write the expression

3300-24x

The second pool starts with 3696 and is losing water at 35 liters per minute which can be written as

3696-35x

B) An expression that shows the 2 pools have the same amount of water

3300-24x= 3696-35x