SOLUTION: Solve and verify your answer.
A dealer bought some radios for a total of $576. She gave away 4 radios as gifts, sold each of the rest for $12 more than she paid for each radio,
Question 1130451: Solve and verify your answer.
A dealer bought some radios for a total of $576. She gave away 4 radios as gifts, sold each of the rest for $12 more than she paid for each radio, and broke even. How many radios did she buy? Answer by ikleyn(52803) (Show Source): You can put this solution on YOUR website! .
Let n = "How many radios did she buy", the value under the question.
From the condition, you have this equation
- = 12. (*)
576n - 576*(n-4) = 12*n*(n-4)
576*4 = 12*n*(n-4)
n*(n-4) = = 192.
Answer. n= 16.
Check. - = 12. ! Correct !
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