Indefinite Equations: Problem 4

Problem: Every time they go to McDonald's, A consumes 5 happy meals, B consumes 3 happy meals, and Z consumes 1/3 of a happy meal. This year, the trio went to McDonald's a total of 100 times and consumed a total of 100 happy meals. How many happy meals this year did each A, B, and C consume?

Key: Use the skills you know from systems of equations!

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