Answer:
2.5 hrs;t/c=h
Step-by-step explanation
The easiest way to do this is by setting up your units so that they cancel to give you what you want. Â You are looking for hours, and you are given both a rate ($5/hour) and a final amount ($12.50).
($12.50) / Â ($5/hour) = 2.5 hours
Now just convert 2.5 hours into actual time units, (2 hours, 30 minutes)
Let's write this into a variable equation. Â Let's call t the "total cost" and c the "hourly cost" and h "hours rented."
t/c = h