8.3 Solving Systems by Elimination

Last updated almost 5 years ago
8 questions
Solve each system by eliminating one of the variables. Write your answer as an ordered pair. Check your answer.
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Stevelyn went to Amelia's and bought x packages of spaghetti for $2 each and y jars of pasta sauce for $3 each and spent a total of $18. But upon returning home Stevelyn had pasta sauce already but was out of parmesan cheese. Stevelyn returned to Amelia's and bought x containers of parmesan cheese for $4 each and returned the pasta sauce bought on the first trip and still spent $18. The system of equations shown below represents the amounts, in dollars, Stevelyn spent on the two trips to Amelia's.


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How many boxes of spaghetti did Stevelyn buy on the first trip?

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How many jars of pasta sauce did Stevelyn buy on the first trip?