AlgebraEasyEquation for a two-item purchase
Algebra practice question
Notebooks cost $2 each and folders cost $3 each. Which equation shows that n notebooks and f folders cost $24 in total?
- A. 2n + 3f = 24Correct
- B. 3n + 2f = 24
- C. n + f = 24
- D. 5(n + f) = 24
Answer: A. 2n + 3f = 24
$2 per notebook and $3 per folder.
Why the other answers are wrong
- B. 3n + 2f = 24
- This swaps the prices.
- C. n + f = 24
- This counts items, not dollars.
- D. 5(n + f) = 24
- This charges $5 for every item.
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