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Mathematics 13 Online
OpenStudy (anonymous):

Tiffany has been dieting for 6 months. After 1 month Tiffany lost a total of 8 pounds. After 6 months, she lost a total of 25 pounds. Find the average rate of change of pounds per month.

OpenStudy (stephstar101):

I'm not sure if the question is poorly written, or if there was just a typo, but I'll give it a shot. Take the total pounds and divide it by the total time: (8lbs+25lbs)/(1 month+6 months)=4.71 lbs/month or if it's a typo (8lbs+25lbs)/(1 month+5 months)= 5.5 lbs/month

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