Homework Help: math problem solving

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

mr. mancho, my great dane, ate 125 hot dogs over a five-day period. each day he ate seven more hot dogs than on the previous day. how many hot dogs did he eat on the first day

math problem solving - drwls, Thursday, October 14, 2010 at 6:39pm
Let 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 6:46pm
eleven

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