www.VirtualNerd.com

How Do You Solve a Word Problem Using Unit Rates?

Kimberly went 5 miles after walking for 2 hours. If Kimberly’s rate of travel stays the same, how far would Kimberly go if she walked for 8 hours?

Summary

  1. We've written Kimberly's walking rate as a ratio
  2. By dividing the numerator and denominator by 2 we'll change 5/2 into a unit rate

Notes

    1. We're trying to make 5/2 into a unit rate
    2. A unit rate must have a 1 in the denominator, which means we have to divide 2 by 2
    3. We have to be sure to divide the numerator by 2 because we want to make sure the new fraction is equivalent to the first
    1. Now that we have her unit rate, we can just multiply that by the length of time we want to learn about
    1. We're multiplying 2.5 over 1 by 8