Systems of linear equations

Solve two equations in two unknowns by substitution, elimination, or graphing, and interpret the solution.

Standards:8.EE.C.8

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

A movie theater sells popcorn and candy. Two bags of popcorn and three boxes of candy cost $16. One bag of popcorn and two boxes of candy cost $9. What is the cost of one bag of popcorn?

Question 2 of 3

A movie theater sells popcorn and drinks. Three popcorns and two drinks cost $19. Two popcorns and four drinks cost $22. What is the cost of one popcorn?

Question 3 of 3

At a bakery, 4 muffins and 2 croissants cost $14. Two muffins and 3 croissants cost $13. Find the cost of one muffin.

How this fits in

Systems of linear equations is one skill in the Algebra Foundations unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

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