Don L. answered 11/27/16
Tutor
5
(18)
Fifteen years teaching and tutoring basic math skills and algebra
Hi Nicole, to solve this problem, set up a system of two equations.
Let D represent the drinks and P represent the popcorn.
Equation 1, for Clay:
4D + 3P = 22.50
Equation 2, for Mark:
5D + 2P = 23.75
System:
4D + 3P = 22.50
5D + 2P = 23.75
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Solve by eliminating one variable. I would suggest eliminating the P variable.
Questions?