Question

How much does a customer at David's

Answer 1

Answer:

The solution as an ordered pair is (3,21)

Step-by-step explanation:

The complete question is

At David's skateboard shop, customers pay an  upfront fee of $12 and then pay $3 per  hour for each hour they use the skateboard.

How much does a customer at David's  skateboard shop pay to rent a skateboard  for 3 hours?

Write your answer as an  ordered pair (h,C)

we know that

The linear equation in slope intercept form is equal to

$C=mh+b$

where

C is the total cost to rent a skateboard

h is the number of hours

m is the slope or unit rate

b is the initial value (the C-intercept)

In this problem we have

The slope is equal to

$m=\ 3\ per\ hour$

The C-intercept or initial value is

$b=\ 12$

substitute

$C=3h+12$

For h=3 hours

substitute in the linear equation

$C=3(3)+12=\ 21$

therefore

The solution as an ordered pair is (3,21)