Question

In Lesson 1.4, you learned about a water footprint. Part of a person's water footprint is the water used for cleaning. In this question, you will calculate the cost of water for laundry and bathing. You will use the City of New York 2011 rate of $7.64/100 cubic feet of water. Calculate the cost of each of the following based on this rate. Use the conversion factor of 7.48 gallons per cubic foot. a. A standard washing machine uses approximately 50 gallons of water per load4 . A household washes one load of laundry per week for 52 weeks. Find the total cost per year. 2655. # b. According to one study, the average American shower lasts for 8.2 minutes and uses 17.2 gallons. A person showers once a day for a year (365 days). Find the total cost per year. $ 6412.9 * /yr

Answer 1

Answer: a) $26.55/year

b) $64.13/year

Step-by-step explanation:

a) $7.64   .   1 ft³     .     50 gal .   1 load   .  52 week   = $26.55

    100 ft³   7.48 gal      1 load      1 week       1 year           year

The total cost per year is $26.55

b)$7.64   .   1 ft³     .     17.2 gal      .   1 shower   .  365 days   = $64.13

    100 ft³   7.48 gal      1 shower         1 day            1 year            year

The total cost per year is $64.13