If we repeat what you did in Question 3 for the second shipment, we get our first look at a system of equations:
Solve the resulting equation for x, then find the value of y that corresponds to it. (You’ll need to decide for yourself how to do that.) Did you end up with the same solution you got from graphing?
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Check out a sample textbook solutionChapter 3 Solutions
Pathways To Math Literacy (looseleaf)
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