Question

Martin Brothers Moving rents moving vans by the hour. The company charges a flat fee of $17.99, plus an additional $19.99 per hour. One customer pays $57.97 for her rental. How long was her rental?

Answer 1

Let h be the number of hours that the customer rented the van, then we can set the following equation:

`19.99h+17.99=57.97.`

Subtracting 17.99 from the above equation we get:

`\begin{gathered} 19.99h+17.99-17.99=57.97-17.99, \\ 19.99h=39.98. \end{gathered}`

Dividing by 19.99 we get:

`\begin{gathered} (19.99h)/(19.99)=(39.98)/(19.99), \\ h=2. \end{gathered}`

Answer: 2 hours.