Question

Evan plans to use a local Rent-A-Tool to rent a saw . The first hour of rental is priced at $35, while each additional hour is $20. Based on the number of hours (h) the saw is rented, which equation can be used to find the average cost (A) per hour to rent the saw?

Answer 1

If you are looking for an equation you can use the slope equation.

y = mx + b

y = 20x +35

Answer 2

The equation that can be used to model the average cost is 20h + 35

How to form an equation?

The first hour of rental is priced at $35, while each additional hour is $20.

Therefore, base on the number of hours (h) the saw is rented the equation of the situation can be modelled as follows:

using

y = mx + b

where

m = slope

b = y-intercept

Therefore,

average cost = 20h + 35

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