Homework Help: math

Posted by Helen on Tuesday, April 21, 2009 at 11:06pm.

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 its absurdly simple but my brain feels like mush right now

math - Dr Russ, Wednesday, April 22, 2009 at 5:52am
Do it step wise as the reverse of the original purchase.

So to get back to the discounted price (after the 10%) then multiply the Ł306 by 1/0.85. Then to get to the original price multiply this result by 1/0.9.
math - Kelsi, Tuesday, June 29, 2010 at 1:43am
100%-15%= 85% 306/85%= 360
100%-10%= 90% 360/90%= 400

Hope this helps

Answer this Question

Related Questions

math - An instrument store gives a 10% discount to all students off the original...
Math - An instrument store gives a 10% discount to all students off the original...
math (discount) - An instrument store gives a 10% discount to all students off ...
math - A store offers a 15% discount on all items in the store during a sale. ...
math - A store offers a 15% discount on all items in the store during a sale. ...
Algebra 1 - A store offers a 15% discount on all items in the store during a ...
math - A discount store takes 50% off of the retail price of a desk. For the ...
math - A discount store takes 50% off of the retail price of a desk. For the ...
math - Roberto is an employee of a store and receives 20% discount off all items...
math - Employees of a discount appliance store recieve an additional 20% off the...

For Further Reading

First Name:
School Subject:
Answer: