# math

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?

1. 👍 0
2. 👎 0
3. 👁 1,472
1. 306*0.10= ANSWER (10% is 10/100 or 0.10)

ANSWER*0.15 (15% is 15/100 or 0.15)

1. 👍 0
2. 👎 5
2. let the original cost be x

(.9)(.85)x = 306
x = 306/(.9(.85)) = 400

check: 10 off \$400 = 400-40= 360
15% off 360 = 360 - 54 = 306

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Math

Nine wonderful students decided to buy their math teacher an expensive present, each contributing the same amount of money. Four other students found out about the plan and joined in, agreeing to pay their share of the present's

2. ### Algebra 1

A store offers a 15% discount on all items in the store during a sale. All store employees get an additional 10% employee discount. In the equation below, C represents the cost of an item for an employee including tax, and x

3. ### math

A store offers a 15% discount on all items in the store during a sale. All store employees get an additional 10% employee discount. In the equation below, C represents the cost of an item for an employee including tax, and x

4. ### Algebra

Dan works at a hardware store. The employee discount is determined by the formula d = 0.15 (c − 10 ). Use the inverse of this function to find the cost of the item for which Dan received an \$18.00 discount. a. Find the inverse

1. ### math

A store offers a 15% discount on all items in the store during a sale. All store employees get an additional 10% employee discount. In the equation below, C represents the cost of an item for an employee including tax, and x

2. ### Math

A store is having a 20%-off sale. It gives an additional 10% off if the item is still above \$100 after the first discount. A jacket costs \$149.99. Will you get the second discount and if so, how many dollars A. Yes; \$42.00 B. Yes;

3. ### MATH HELP ASAP

Two stores carry a similar stereo for the same original price of \$573. One store offers a 16% discount and the second sells the stereo for \$458.40. Which store gives the bigger percent discount? Justify your answer.

4. ### Algebra

In the mall you receive a coupon for 5 dollars off a pair of jeans. When you arrive at the store you find that all jeans are 25 percent off Let x represent the original cost of the jeans 18a.Write a function F(x) that represents

1. ### math

if a store is having a 20% off sale, and something is \$126.40 after the discount, how much is the original price. i just need help with the formula..

2. ### math

Hank Kerchief went to the sale, bought a cd at 30% off and received a \$6.00 discount. What was the original price of the cd??? Show work The \$6 discount WAS the 30% reduction off the original price, P. Solve this equation for P:

3. ### SELLING MATH!

Two stores carry a similar stereo for the same original price of \$573. One store offers a 16% discount and the second store sells the stereo for \$458.40. Which store gives the bigger percent discount? Justify your answer.

4. ### Math

Two stores carry a similar stereo for the same original price of \$573. One store offers a 16% discount and the second store sells the stereo for \$458.40. Which store gives the bigger percent discount? Justify your answer.