SOLUTION: Suppose a bike rental cost $4 plus $1.50 per hour. A. Write an equation to model the total cost y renting a bike for x hours. B. Use the equation to find the cost of renting a bi

Question 967419: Suppose a bike rental cost $4 plus $1.50 per hour.
A. Write an equation to model the total cost y renting a bike for x hours.
B. Use the equation to find the cost of renting a bike for 12 hours.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
A)

Total Cost = (hourly rate)*(number of hours) + Fixed Initial Cost
y = 1.50x + 4

So the equation is y = 1.50x + 4

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B)

Plug in x = 12 to find y

y = 1.50x + 4
y = 1.50*12 + 4
y = 18 + 4
y = 22

It will cost $22 total to rent the bike for 12 hours.
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