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haileyfagiano
haileyfagiano haileyfagiano
  • 07-09-2016
  • Mathematics
Answered

How do I solve this problem?

How do I solve this problem? class=

Verified Answer :

Mathsman Mathsman
  • 07-09-2016

This can be modelled as an inequality:

Profit > costs
Let x be the number of books, so: 
15x > 4x + 3500 
11x > 3500
x > 3500 / 11
x > 318.18
so you need to sell 319 books.

Hope that helped!

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