contestada

Both​ Wilma's and​ Betty's pools hold 9000 gallons of water. If​ Wilma's garden hose fills at a rate of 750 gallons per hour while​ Betty's garden hose fills at a rate of 650 gallons per​ hour, how much longer does it take Betty to fill her pool than​ Wilma?

Respuesta :

nonsibi

Wilma: 9000/750 = 12 hours

Betty: 9000/650 = 13.85 hours

13.85-12 = 1.85 hours approx.

That is 1 hour and 51 minutes.

answer: 1 hour and 51 minutes approx.