CCSS TP Algebra I 1.4.1 Example 4

A school supply company produces wooden rulers and plastic rulers. The rulers must first be made, and then painted.
  • It takes 20 minutes to make a wooden ruler. It takes 15 minutes to make a plastic ruler. There is a maximum amount of 480 minutes per day set aside for making rulers.
  • It takes 5 minutes to paint a wooden ruler. It takes 2 minutes to paint a plastic ruler. There is a maximum amount of 180 minutes per day set aside for painting rulers.
Use the system of inequalities from Example 3 to give a possible solution to the system.
  1. Use what you know about the constraints on the real-world situation to determine any limits on the possible solutions.
  2. Choose a value for w and solve the first two inequalities in the system for p.
  3. Interpret the results.
This applet is provided by Walch Education as supplemental material for the CCSS Traditional Pathway: Algebra I program. Visit www.walch.com for more information on our resources.