Pat delivers newspapers every morning. On average, she can deliver newspapers to 17 homes in 12 minutes.
If her normal route has 119 homes, how long does it take her to deliver the mail on average?
Make a proportion and use the variable
to represent the unknown number of minutes.
Multiply both sides by 12.
Try solving the rest on your own.
When another deliverer is sick, Pat's route expands to a total of 155 homes. How long does this route take her?
See the hints and steps in part (a).