Question

1.if an item is discounted 30%, then what percent of the original price is the sale price?2. if the original price of the item is $500, what is the dollar amount of the discount? 3.how much is the sale price

Answer 1

1. We will have that the original price represents the 100% and we will have that the 30% will represent the dicount value, therefore:

`D_p=O_(v-)(O_v\cdot30)/(100)`

Here Dp is the price with discount and Ov is the original value.

2. We will replace the values in the previous function:

`D_p=500-(500\cdot30)/(100)\Rightarrow D_p=350`

From this we have, that if the original value was $500 and it got a 30% discount, the final price would be $350.