Question

the house trevors 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 money did trevors family spend, in total, on shower water in the past month? dollars

Explanation:

Step1: Calculate total shower - water used

There are 6 people and each used an average of 72 liters of shower - water. So the total amount of shower - water used is the product of the number of people and the average amount of water used per person.
$6\times72 = 432$ liters

Step2: Calculate total money spent

Water costs 0.20 dollars per liter. To find the total money spent on shower - water, we multiply the total liters of shower - water used by the cost per liter.
$432\times0.20=86.4$ dollars

Answer:

86.4 dollars