12.3k views
4 votes
katy w ants to rent a boat and spend less than $54. The boat costs $7 per hour, and katy has a discount coupon for $9 off. what are the possible numbers of hours katy could rent the boat? use t for the munber of hours.

User ScottOBot
by
5.6k points

1 Answer

3 votes

Let's begin by identifying key information given to us:

The boat = $7 per hour

Discount = $9

Amount to spend < $54

t = the number of hours

We will calculate thus:


\begin{gathered} 7t-9<54 \\ \text{Add ''9'' to both sides, we have:} \\ 7t-9+9<54+9 \\ 7t<63 \\ \text{Divide both sides by ''7''. We have:} \\ (7t)/(7)<(63)/(7) \\ t<9hours \end{gathered}

Katy can rent the boat for between 1 to 8 hours

User Bit Hunter
by
5.5k points