Graphing Systems of Linear Inequalities · Review Exercise 73
Translate to a system of equations and solve.
Troy and Lisa were shopping for school supplies. Each purchased different quantities of the same notebook and thumb drive. Troy bought four notebooks and five thumb drives for $116. Lisa bought two notebooks and three thumb drives for $68. Find the cost of each notebook and each thumb drive.
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OpenStax, Intermediate Algebra 2e · §4.7 Graphing Systems of Linear Inequalities · Review Exercise 73
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