Answer:
The amount of water added by the pool maintenance to make the pool 90% full is 178,200 gallons.
Step-by-step explanation:
The amount of water an Olympic-sized pool can hold is, 660,000 gallons.
The pool is 63% full at the moment.
The of water in the pool now is: [tex]63\%\ of\ 660000=415,800\ gallons[/tex]
If the pool is 90% full then the amount of water in the pool is:
[tex]90\%\ of\ 660000=594,000\ gallons[/tex]
The amount of water added by the pool maintenance is:
Amount of water added = 90% of 660,000 - 63% of 660,000
[tex]=594000-415800\\=178200[/tex]
Thus, the amount of water added by the pool maintenance to make the pool 90% full is 178,200 gallons.
