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17-09-2021
Mathematics

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Suppose Lakeside Marina charges a $35 rental fee for a boat in addition to charging $15 per hour. The linear function is modeled by f(x)=15x + 35, where f(x) represents the total cost of renting the boat, and x represents the number of hours the boat was rented. What is the cost of renting the boat for 3 hours?
A.
$80

B.
$10

C.
$10

D.
$50

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tanhanwei90 tanhanwei90

17-09-2021

Answer:

A. $80

Step-by-step explanation:

Since f(x)=15x + 35, we know that x represents number or hours. By substituting x as 3 we get 15(3) + 35 = 80.

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