Question

An appliance is on sale at 30% discount. If the sale price is $42.00, what was the original price of the appliance?

Answer 1

Do 42 times .30 and whatever number you get, add onto 42 and that's the original price.

Answer 2

That is not correct

the 42.00 represents .7 of the original price
so .7x = 42
x = 42/.7 = $60
<b> The original price was $60</b>

check:
30% discount of $60 = .3(60) = 18
sale price = 60 - 18 = 42

your way:
.3(42) = 12.60
your price = 42+12.60 = 54.6

now .3(54.6) = 16.38
your sale price = 54.60 - 16.38 = $38 ≠ $42

Answer 3

Thank you so much, this really helped me. I didn't understand how you got .7 at first but now that you sort of explained it I get it now!