At Westonci.ca, we provide clear, reliable answers to all your questions. Join our vibrant community and get the solutions you need. Explore a wealth of knowledge from professionals across various disciplines on our comprehensive Q&A platform. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

Terrance purchased a total of 10 pens and pencils for $4. Pens cost 50 cents and pencils cost 25 cents. Terrance wrote the system of equations below to represent the situation.

{ x + y = 10
{ 1/2x + 1/4y = 4

A: What units are associated with the expressions in the second equation?

B: Describe the constraint that each equation places on the system.

C: Are there any other constraints on the system? If so, what are they?