The house Trevor's family lives in has 6 people (including Trevor) and 3 bathrooms. In the past month, each person showered for an average of 480 minutes and used an average 72 liters of shower water (over the entire month). Water costs 0.20 dollars per liter.How much did Trevor's family pay per minute on shower water?__________dollars per minute
Q. The house Trevor's family lives in has 6 people (including Trevor) and 3 bathrooms. In the past month, each person showered for an average of 480 minutes and used an average 72 liters of shower water (over the entire month). Water costs 0.20 dollars per liter.How much did Trevor's family pay per minute on shower water?__________dollars per minute
Calculate total water usage: Calculate the total water usage for the month.Total water usage = Number of people × Average water usage per person= 6×72 liters= 432 liters
Calculate total cost: Calculate the total cost for the water used.Total cost = Total water usage × Cost per liter= 432 liters ×$0.20/liter= $86.4
Calculate total shower time: Calculate the total shower time for the month.Total shower time = Number of people × Average shower time per person=6×480 minutes=2880 minutes
Calculate cost per minute: Calculate the cost per minute of shower water.Cost per minute = Total cost / Total shower time= $86.4 / 2880 minutes= $0.03 per minute