SOLUTION: The water usage in a city varies directly with the population of a city. City A has a population of 315,000 people and uses an average of 14,251,000 gallons of water per day. How

Question 1085124: The water usage in a city varies directly with the population of a city. City A has a population of 315,000 people and uses an average of 14,251,000 gallons of water per day. How many gallons of water per day should we expect City B to produce if its population is 1,240,000 people?
Answer by ikleyn(52799) (Show Source): You can put this solution on YOUR website!
.

Use the proportion

 = ,

where x is the unknown amount of water in gallons per day for the city B.


Solve the proportion for x: x = .


Use your calculator.

There is a bunch of lessons on proportions in this site:
    - Proportions
    - Using proportions to solve word problems
    - Using proportions to solve word problems in Physics
    - Using proportions to solve Chemistry problems
    - Using proportions to estimate the number of fish in a lake
    - HOW TO algebreze and solve this problem using proportions
    - OVERVIEW of lessons on proportions

Read them and become an expert in this area.

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