Rate mini quiz answers

Last updated: 20 May 2008

Answers to the rate mini quiz.

  1. A car travels at an average speed of 40 miles per hour for 4 hours. What is the total distance that it travels?

    Distance = Rate x Time = 40 mph x 4 hours = 160 miles

  2. Mary takes 30 mins to walk the 2 miles to her work. What is her average speed measured in miles per hour?

    Average speed = `text{Distance} / text{Time} = (2 text{ miles})/(1/2 text{ hour})` = 4 mph

  3. If a machine can produce 15 widgets a minute then how long will it take to produce 6,000 widgets?

    Time = `text{Amount} / text{Rate} = 6000 / 15` = 400 minutes

Next page: Combined work rate problems

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