algebra inequalities

[jonesbetty]

Joe's Electric made 16 customer calls last week and 21 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

 

[Deleted member 4993]

Joe's Electric made 16 customer calls last week and 21 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

Start these problems by "naming" variables - to be found. In this problem - that would be

the amount calls made this week

Then, let:

the amount calls made this week = C

Now continue......

Please share your work with us, indicating exactly where you are stuck - so that we may know whereto begin to help you.