Lesson 5.7: Modeling with Rational Functions Answers
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For a fixed amount of gas at a constant temperature, the volume of the gas is inversely proportional to its pressure. The function relates the volume in cubic inches and pressure in pounds per square inch of a gas. What is the volume when the pressure is 900 pounds per square inch?
A
0.05 in.3B
0.5 in.3C
20 in.3D
200 in.322
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The function yields the average cost in dollars per cup of lemonade made by Lincoln at his lemonade stand when he makes x cups of lemonade. Which statement best fits the situation modeled by the function?
A
Lincoln sells lemonade for 25 cents a cup.B
Lincoln gave away 30 cups of lemonade for free.C
Lincoln uses 25 cents worth of supplies per cup.D
Lincoln uses 30 cents worth of supplies per cup.23
A 22,800-gallon swimming pool is being filled by four hoses. Water flows through each hose at a rate of 300 gallons per hour. How many hours will it take to fill the pool?
A
19 hoursB
76 hoursC
152 hoursD
304 hoursDid you find these answers helpful?
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