To produce an old photograph, a photographer charges x dollars to make a negative 3x/5 dollars for each of the first 10 prints, and x/5 dollars for each print in excess of 10 prints. If 45 dollars is the total charge to make a negative and 20 prints from an old photograph how many dollars the photographer charges to make a negative?
Solution
Correct Answer: Option E
equation is x+(3x/5)(10)+(x/5)(10)=45 x+(3x/5)(10)+(x/5)(10)=45 x+6x+2x=45 9x=45 x=5
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