Answer:
2432.5 gallons
Step-by-step explanation:
Given that the pool loses 70% of it's water every ten minutes, it means that in 30 minutes, 70% of the volume of water present would have been lost. Mathematically, in the first 10 minutes, the water lost
= 70% * 2500 gallon
= 1750 gallons
Volume of water left
= 2500 - 1750
= 750 gallons
After another 10 minutes (20 minutes in total), the water lost
= 70% * 750
= 525 gallons
Volume of water left
= 750 - 525
= 225 gallons
After another 10 minutes (30 minutes in total), the water lost
= 70% * 225
= 157.5 gallons
Volume of water left
= 225 - 157.5
= 67.5 gallons
Total volume of water lost after 30 minutes
= 2500 - 67.5
= 2432.5 gallons
Answer:
Total water remaining after 30 minutes is 67.5
Step-by-step explanation:
Total gallon pool= 2500
If 70% of water is lost every 10 minutes, how much water will remain after 30 minutes.
First 10 minutes
70% of 2500
= 70/100 * 2500
=0.7*2500
= 1750
Total remaining after first 10 minutes = 2500-1750
=750
Second 10 minutes (20 minutes)
70% of 750
70/100 * 750
0.7 * 750
525
Total remaining after the second 10 minutes (20 minutes)
750-525
225
Third 10 minutes (30 minutes)
70% of 225
70/100 * 225
0.7 * 225
157.5
Total remaining after the third 10 minutes ( 30 minutes)
225-157.5
=67.5
