AlgebraEasy–MediumMonthly payment on a phone plan
Algebra practice question
A phone costs $240. A customer pays a $60 deposit and then 12 equal monthly payments. How many dollars is each monthly payment?
Answer: 15
60 + 12m = 240 gives 12m = 180, so m = 15.
Common wrong answers
- If you answered 20
- 20 divides 240 by 12, ignoring the deposit.
- If you answered 25
- 25 divides 300 by 12, adding the deposit instead of subtracting.
- If you answered 180
- 180 is the total of the monthly payments.
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