Distance, Speed & Time( Week 12 Evaluation) 1. Jackson took a 15-mile biking trip in 1.5 hours. What was his average speed in feet per minute? Note that 1 mile = 5280 feet. 2. George rode his bike to a baseball practice at 9 mph. On his way home, he only pedaled at 6 mph. What was his average speed (in mph) for the entire trip? 3. A police officer is chasing a speeding driver who is driving at 75 MPH. The officer is 0.5 mile behind the speeding car and he travels at 80 MPH. How many minutes will it take for the officer to catch up the speeding car? 4. Jennifer and her father rode a tandem bicycle in a trail. In the first half of the distance, she pedaled, her dad rest, and the tandem bicycle traveled at 5 MPH. In the second half of the distance, she rest, her dad pedaled, and the tandem bicycle traveled at 15 MPH. How much was the average speed (in MPH) for the entire distance? 5. Susan and Mary compete in a 10.8-mile bicycle trail. Susan bikes at 13.5 MPH, and Mary bikes at 12.25 MPH. How far (in miles) is Mary behind Susan when Susan reaches the finish line? 6. Steve runs 2 meters every second. Jennifer runs 1.5 meters every second. Steve let Jennifer start a race 45 meters ahead of him, and reached the finish line 9 seconds before Jennifer did. How many meters did Steve run in the race? 7. Two cars started from the same place at the same time, but they headed in opposite directions. The faster car traveled 15 miles per hour faster than the slower car. At the end of 8 hours, they were 920 miles apart. How many miles had the faster car traveled by the end of 8 hours? 8. In an one-mile running race, Morgan was able to run at 9 MPH for the 1st half, but was only able to run at 1 MPH for the remaining half. What was her average speed (in MPH) for the entire race? |