Problema Solution

A dealer bought some radios for a total of $672. She gave away 8 radios as gifts, sold each of the rest for $14 more than she paid for each radio, and broke even. How many radios did she buy?

Answer provided by our tutors

let


x = the number of radios the dealer bought, x>0


672/x = the price per radio


(x - 8)(672/x + 14) = 672


by solving we find:


x = 24 radios


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the dealer bought 24 radios.