Question

Which of the following expressions could be used to find the sale price of an item that costs d dollars if it is on sale for 30% off? 30 d 0.3 d 0.7 d 70 d

Answer 1

Greetings!

An item at full price is 100%, or by using the percentage formula: $(\frac{percentage}{100})$

If something is at 30% off, that means it is 70% of the original price (because minus the percentage from the 100%)

So by substituting the numbers into the percentage formula you end up with:

$(\frac{70}{100})$ which is 0.7

So your answer would be D, 0.7!

Hope this helps!