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January 29, 2015

January 29, 2015

Posted by **nikki** on Thursday, October 14, 2010 at 6:26pm.

- math problem solving -
**drwls**, Thursday, October 14, 2010 at 6:39pmLet X be the number eaten the first day.

X + (X+7) + (X+14) + (X+21) + (X+28) = 125

5X + 70 = 125

5X = 55

X = 11

Check: 11 + 18 + 25 + 32 + 39 = 125

This couls have been obtained more easily (and without algebra) by recognizing that the number consumed on the third day (25) was the average for the five-day period.

- math problem solving -
**yUo**, Thursday, October 14, 2010 at 6:46pmeleven

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