AlgebraEasyTakings from a linear model
Algebra practice question
A bakery's takings T, in dollars, on a day when it sells c cakes are given by T(c) = 40 + 6c. What are the takings, in dollars, on a day when it sells 10 cakes?
Answer: 100
40 + 6(10) = 100.
Common wrong answers
- If you answered 46
- 46 adds 6 once instead of 6 × 10.
- If you answered 60
- 60 is the cake sales alone, without the 40.
- If you answered 460
- 460 multiplies 46 by 10.
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