SOLUTION: A messenger service charges $10 to make a delivery to an address. In addition, each letter delivered costs $3 and each package delivered cost $8. If there are 15 more letters than

Question 1147992: A messenger service charges $10 to make a delivery to an address. In addition, each letter delivered costs $3 and each package delivered cost $8. If there are 15 more letters than packages delivered to this address, what is the maximum number of items than can be delivered for $85?
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!

Let the number of packages be x; then the number of letters is x+15.

The total cost is the delivery fee, plus $8 for each package and $3 for each letter; and the total cost has to be $85 or less.

In this problem, x has to be an integer; the largest integer value of x that satisfies that inequality is x=2.

So the maximum number of items that can be delivered for $85 or less is

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