Home Back to the Challenge Try These Think About This... Did You Know? Resources Try Another Challenge
Figure This!


Complete Solution:

Her speed would be about 24.6 miles per hour; she could pass the car.

One method for converting between measures is called dimensional analysis. The conversions between measures are written as fractions so the common units cancel out, as below:






Units cancel





Her rate is about 24.6 miles per hour, and she could easily pass a car going at a rate of 15 miles per hour.

Home · Back to the Challenge · Try These · Think About This  ·  Did You Know? · Resources
Try Another Challenge · Challenge Index · Math Index · Printing the Challenges · En Español
Family Corner · Teacher Corner · About Figure This! · Purchase the CD
©2004 National Council of Teachers of Mathematics
Web site and CD-ROM design/production
© 1999-2004 KnowNet Construction, Inc.