What is the answer for question 6) ? http://postimg.org/image/60yo5jpn5/

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steveschoen | College Teacher | (Level 1) Associate Educator

Posted on

Hi, Jayson,

There are a lot of ways to solve this. Let's try this.

First, consider when one calculates a discount price:

Original price - amount of discount = discount price

The amount of discount is how much was taken off. The discount price is what the selling price was after the discount.

Now, to calculate the amount of a discount, we would multiply the original price by the percent discount. So, for this problem:

amount of discount = 0.20x              0.20 comes from the 20%

                                                      always move the decimal point

                                                      2 places to the left

We are taking x = original price of the item.

So, then, our equation becomes:

x - 0.20x = discount price

We are given the discount price, $89.40. So, then, we have:

x - 0.20x = 89.40

Solving this for x:

0.80x = 89.40

x = $111.75 is the discounted price.

Good luck, Jayson. I hope this helps. Till Then, Steve

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