Homework Help: algebra

Posted by Teresa on Friday, May 20, 2011 at 11:41am.

Joe's electric made 17 customer calls last wk and 23 calls this week. How many calls must be made next week in order to maintain an average of at least 21 calls per week for the three week period?

At least blank calls must be made to maintain an average of 21 calls per week.

algebra - Ms. Sue, Friday, May 20, 2011 at 11:44am
21 * 3 = 63

17 + 23 = 40

63 - 40 = ?
algebra - Sona, Friday, May 20, 2011 at 1:55pm
63-40=23

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