AlgebraMediumMost classes within a budget
Algebra practice question
A dance school charges a $15 registration fee plus $12 per class. With $80, what is the greatest number of classes a student can pay for?
Answer: 5
15 + 12c ≤ 80 gives c ≤ 5.4, so 5.
Common wrong answers
- If you answered 4
- 4 stops one short.
- If you answered 6
- 6 would cost $87.
- If you answered 6.67
- 6.67 divides 80 by 12, ignoring the fee.
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