Explore BrainMass
Share

Explore BrainMass

    Ratios and Porportions - Calories

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Activity Cal/h Activity Cal/h
    Bicycling 6 mi/h 240 Running 10 mi/h 1,280
    Bicycling 12 mi/h 410 Swimming 25 yd/min 275
    Cross-country skiing 700 Swimming 50 yd/min 500
    Jogging 5 mi/h 740 Tennis (singles) 400
    Jogging 7 mi/h 920 Walking 2 mi/h 240
    Jumping rope 750 Walking 3 mi/h 320
    Running in place 650 Walking 4 mi/h 440

    Work with your group members to solve the following problems. You may find that
    setting up proportions is helpful.
    For problems 1 through 4, assume a 150-pound person.
    1. If a person jogs at a rate of 5 mi/h for 3 h in a week, how many calories do they
    burn?
    2. If a person runs in place for 15 minutes, how many calories will be burned?
    3. Ifapersoncross-countryskis for35minutes,howmanycalories willbeburned?
    4. How many hours would a person have to jump rope in order to lose 1 pound? (Assume
    calorie consumption is just enough to maintain weight, with no activity.)
    Heavier people burn more calories (for the same activity), and lighter people burn
    fewer. In fact, you can calculate similar figures for burning calories by setting up the
    appropriate proportion.
    5. At what rate would a 120-pound person burn calories while bicycling at 12 mi/h?

    © BrainMass Inc. brainmass.com October 9, 2019, 9:29 pm ad1c9bdddf
    https://brainmass.com/math/consumer-mathematics/186670

    Solution Summary

    The number of calories burnt in each case is calculated using the given information.

    $2.19