SOLUTION: An instrument store gives a 10% discount to all students off the original cost of an instrument. During a back to school sale an additional 15% is taken off the discounted price. J

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Question 457035: An instrument store gives a 10% discount to all students off the original cost of an instrument. During a back to school sale an additional 15% is taken off the discounted price. Julie, a student at the local high school, purchases a flute for $306. How much did it originally cost?

I know this is simple I am just having trouble remembering how to convert percentages and how to solve the problem. Please help me with the steps involved in this problem. Thank you Kevin.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
10% discount means she paid 90%=.90
15% discount means she paid 85%=.85
x is the original price
.85*(.90*x)=306
x=400
check
.90*400=360
.85*360=306
ok