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A. Solve each problem. Direct Variation 1.) y is directly proportional to x. if y =15 when x =4, find y when x =5. 2.) If y varies as the square of x, and y is 4 when x is 4, find y when x is 3. 3.) The number of kilograms of water in a body of a person varies directly as the mass of the person. If a person with a mass of 90 kg contains 60kg of water, how many kilograms of water are in a person with a mass of 130 kg?

A. Solve each problem. Direct Variation 1.) y is directly proportional to x. if y =15 when x =4, find y when x =5. 2.) If y varies as the square of x, and y is 4 when x is 4, find y when x is 3. 3.) The number of kilograms of water in a body of a person varies directly as the mass of the person. If a person with a mass of 90 kg contains 60kg of water, how many kilograms of water are in a person with a mass of 130 kg?

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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A. Solve each problem. Direct Variation 1.) y is directly proportional to x. if y =15 when x =4, find y when x =5. 2.) If y varies as the square of x, and y is 4 when x is 4, find y when x is 3. 3.) The number of kilograms of water in a body of a person varies directly as the mass of the person. If a person with a mass of 90 kg contains 60kg of water, how many kilograms of water are in a person with a mass of 130 kg? 4.) The weight of an object on Mars varies as its weight on Earth. An object that weighs 115kg on Earth weighs 44kg on Mars. How much would a person weigh on Mars if the person weighs 75kgs on Earth?
Transcribed Image Text:A. Solve each problem. Direct Variation 1.) y is directly proportional to x. if y =15 when x =4, find y when x =5. 2.) If y varies as the square of x, and y is 4 when x is 4, find y when x is 3. 3.) The number of kilograms of water in a body of a person varies directly as the mass of the person. If a person with a mass of 90 kg contains 60kg of water, how many kilograms of water are in a person with a mass of 130 kg? 4.) The weight of an object on Mars varies as its weight on Earth. An object that weighs 115kg on Earth weighs 44kg on Mars. How much would a person weigh on Mars if the person weighs 75kgs on Earth?
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