AlgebraEasyDecreasing linear model
Algebra practice question
A candle is 12 centimetres tall and burns down by 1 centimetre every hour. How tall is the candle, in centimetres, after 4 hours?
Answer: 8
12 − 4(1) = 8.
Common wrong answers
- If you answered 3
- 3 is 12 ÷ 4.
- If you answered 4
- 4 is the number of hours.
- If you answered 16
- 16 adds 4 instead of subtracting.
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