Use numerals Instead of words for numbers. If necessary, use / for the fraction bar(s). The amount of time it takes a water pump to empty a tank varies directly as the capacity of the tank if it takes a water pump 2.5 hours to empty
a tank containing 60,000 gallons of water, how long does it take the same pump to empty a tank containing 108,000 gallons of water?
It will take
hours to empty the second tank.