# SOLUTION: Joe's electric made 19 customer calls last week and 24 calls this week. How many calls must be made next week in order to maintain an average of at least 20 calls for the three wee

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 Click here to see ALL problems on Inequalities Question 176923: Joe's electric made 19 customer calls last week and 24 calls this week. How many calls must be made next week in order to maintain an average of at least 20 calls for the three week peroid?Answer by Mathtut(3670)   (Show Source): You can put this solution on YOUR website!given--->x is our unknown value : multiplied both sides by 3 : subtracted 19 and 24 from both sides to isolate x