Isaac shoveled 9 of his neighbors' driveways after a snow storm. He charged $25 for a short driveway and $45 for a long driveway. Which equation can be used to find y, the total amount that Isaac charged when x of the driveways are short?

Question

Mathematics

Kyle White

16 August, 13:07

Isaac shoveled 9 of his neighbors' driveways after a snow storm. He charged $25 for a short driveway and $45 for a long driveway. Which equation can be used to find y, the total amount that Isaac charged when x of the driveways are short?

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Answers (1)

Know the Answer?

Chana Reed · Answer 1

y ($) = 405 - 20x

Step-by-step explanation:

Number of short driveways = x

Number of long driveways = 9-x

Fee per long driveway = $45

Fee per short driveway = $25

Total amount = y

y ($) = 25x + 45 (9-x)

= 25x + 405 - 45x

= 405 - 20x