A water tank has 22 gallons of water. It begins to receive 26 gallons per hour for a number of hours. If the tank needs to fill to at least 516 gallons, which of the following is the minimum number of hours the tank should continue filling?
The number of gallons in the tank can be represented by the equation: g = 26h + 22; where g is the gallons of water in the tank and h is the number of hours passed.
Equating g to 516:
516 = 26h + 22 26h = 494 h = 19 hours of filling time
