Homework 4.2
1. The speed limit is 75 miles per hour. If a truck traveling at the speed limit drives 225 miles before stopping,
find the length of time a truck has traveled.
Let x =
2. Katie drives her car at 55 miles per hour for 3 hours. How far does she travel?
3. Alex earned $326 this summer mowing lawns. The total was $40 more than what he earned last year. How
much did he earn last year?
4. Tiger Woods won the 2002 Masters Championship with a final score of 12 under par, or –12. His scores for
the first three rounds were –2, –3, and –6. What was his score for the fourth round?
5. Grace earns $5 per hour when she baby-sits. How many hours does she need to work to earn $75?
6. A batch of cookies split among four students resulted in three cookies per student. How big was the batch?