Respuesta :

975 ÷7.5 = 130 cu ft
2130 - 130 = 2000
2000 ÷ 20 = 100 min
swaggernaut
if the total volume is 2130 cubic feet, if you convert that to gallons its 15975 gallons, it already has 975 so subtract. you need to fill 15,000 gallons. you can do 20 cubic feet per minute which is 150 gallons. 15000/150 = 100minutes