The price of gasoline purchased varies directly as the number of gallons of gas purchased. Suppose 22 gallons are purchased for $79.80. Step 1 of 2: Find the constant of proportionality k, rounded to two decimal places if necessary, and use it to write an equation that models the relationship. Let x represent the number of gallons purchased, and let y represent the total price.

The price of gasoline purchased varies directly as the number of gallons of gas purchased. Suppose 22 gallons are purchased for $79.80. Step 1 of 2: Find the constant of proportionality k, rounded to two decimal places if necessary, and use it to write an equation that models the relationship. Let x represent the number of gallons purchased, and let y represent the total price.

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter8: Rational Expressions And Equations

Section8.9: Use Direct And Inverse Variation

Problem 8.182TI: The time required to empty a pool varies inversely as the rate of pumping. It took Lucy 2.5 hours to...

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