CCGPS AA 6.3.2 Example 3

A coffee retailer sells two types of coffee beans, the Arabica and Robusta. The Arabica coffee bean costs $9 per pound and the Robusta costs $7 per pound. Find a possible amount of Arabica and Robusta that can be mixed together to yield a quantity of coffee beans costing less than $25.50. Graph the inequality and show the possible solution on the graph.
  1. Write the inequality that represents the possible amounts of each type of coffee.
  2. Find a possible solution to the inequality.
  3. Graph the inequality using technology.
  4. Verify that the previously determined solution is a feasible solution.
This applet is provided by Walch Education as supplemental material for the CCGPS Advanced Algebra program. Visit www.walch.com for more information on our resources.