Homework Help: math

Posted by patti help on Friday, March 16, 2007 at 10:09pm.

How many hours of jogging at 5 1/2mi/h would be needed for a 200 pound person to lose 5 pounds and it takes 3500 cal for one pound 740 cal/h for jogging 5 1/2 mi/h

Please post your answer, and we'll be glad to critique it.

750x3500

740x3500=2590

No, not right.
If it takes 3500 burned calories to lost 1 lb, then it takes 5 * 3500 = 17,500 cal to lose 5 lb
Now let N be the number of hours needed to lose 5 lb.
N (h) * 740 (cal/h) = 17500 cal
N = 17500/740 = 23.6 h

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