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A self-serve car wash charges $5.09 to use its facilities, plus an additional $0.60 for each minute the customer is at the self-serve car wash. If Tiffany was at the car wash for 9 minutes, how much was she charged?

A. $5.40
B. $10.49
C. $14.09
D. $5.69

1 Answer

1 vote
We can create an equation to find the total cost of anyone who uses the car wash:


\sf y=5.09+0.60x

Where 'y' is total cost and 'x' is the minutes they spent washing the car. Plug in what we know:


\sf y=5.09+0.60(9)

Multiply:


\sf y=5.09+5.40

Add:


\sf y=\boxed{\sf \$10.49}

So she was charged $10.49.
User Zapotec
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