Question

Rachael’s backyard swimming pool is being emptied by a pump. The amount of water in the pool W in gallons at any time t in hours is given by the following equation: W = 9,000 – 250t. How many gallons of water are being pumped out each hour?

Answer 1

ok so it is
W=origianl amount-amount taken out
amount taken out=amount taken out per hour times number of hours (t)
theref


250 gallons aer being pumped out every hour