Lesson 8
Scale Drawings and Maps
Let’s use scale drawings to solve problems.
8.1: A Train and a Car
Two cities are 243 miles apart.
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It takes a train 4 hours to travel between the two cities at a constant speed.
- A car travels between the two cities at a constant speed of 65 miles per hour.
Which is traveling faster, the car or the train? Be prepared to explain your reasoning.
8.2: Driving on I-90
- A driver is traveling at a constant speed on Interstate 90 outside of Chicago. If she traveled from Point A to Point B in 8 minutes, did she obey the speed limit of 55 miles per hour? Explain your reasoning.
- A traffic helicopter flew directly from Point A to Point B in 8 minutes. Did the helicopter travel faster or slower than the driver? Explain or show your reasoning.
8.3: Biking through Kansas
A cyclist rides at a constant speed of 15 miles per hour. At this speed, about how long would it take the cyclist to ride from Garden City to Dodge City, Kansas?