21
QuizMultiple Choice

Standard Form — Unit test

Question 21 • Q1 Mathematics 8

The Shake Shack sells large and small shakes. A large shake costs $5, and a small shake costs $3. On Sunday, the Shake Shack had a total revenue of $479. Which equation can be used to represent x, the number of small shakes sold and y, the number of large shakes sold?

Answer
A
479x + 479y = 15
B
4x + 4y = 479
C
5x + 3y = 479
D
3x + 5y = 479

Explanation

Each small shake brings in $3, so x small shakes bring in 3x dollars. Each large shake brings in $5, so y large shakes bring in 5y dollars. Their combined revenue was $479, giving 3x + 5y = 479, choice D.

AI-written and checked against the verified answer.

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