1
QuizMultiple Choice

Matrices and Row Operations

Question 1 • Precalculus

A store sells yogurt in small, medium, and large sizes. A small yogurt costs $2, a medium costs $3, and a large costs $5. In one hour, the shop sold 27 yogurts for $98. There were five more large yogurts than small yogurts. The matrix below represents the system of equations in this situation.How many of each size yogurt did the store sell during that hour?

Question illustration
Answer
A
7 small yogurts, 8 medium yogurts, 12 large yogurts
B
12 small yogurts, 8 medium yogurts, 7 large yogurts
C
27 small yogurts, 98 medium yogurts, 5 large yogurts
D
98 small yogurts, 27 medium yogurts, 5 large yogurts
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