The Table shows the weekly change in the water level in a swimming pool. After 4 weeks, the pool owner adds water to return the water level back to the original level. Raising the water level by 1 inch requires 320 gallons. The water hose has a flow rate of 5.75 gallons of water per minute. Will it take less than an hour to fill the pool the pool back to return the water level to the original level? Explain your reasoning
so we just need to raise the pool back to original level in total, the pool drained a total of 1 and 3/8 inches so we need to find out how long it would take to raise the pool by 1 and 3/8 inches
1 inch=320 gallons 1 and 3/8=320 times 1 and 3/8=320 and 960/8=440 he needs to put in 440 gallons it is 5.75 gallons per minute find out how many minutes it will take 440=5.75 times x minutes divide both sides by 5.75 76.521=xminutes round 77 minutes
1 hour=60 minutes 77>60 it will take more than 1 hour to make the pool back to original level
