Question

PLEASE TEACH ME HOW TO DO IT!
A shirt is on sale for 30% off the regular price. The regular price is $27.00.

What is the sale price?

$8.10
$18.20
$18.80
$18.90

Answer 1

30% of 27 = 30/100 * 27 = ... ?

Answer 2

8.1 = 8.10

Answer 3

yep ;)

Answer 4

THANKS :D

Answer 5

That is not the answer.

Answer 6

???

Answer 7

sorry!

Answer 8

thats the amount you subtract! :P

Answer 9

sale price = regular price - discount
= 27- 8.1

Answer 10

ook!

Answer 11

thanks for pointing it out @EulersEquation

Answer 12

Thanks both!

Answer 13

Ok, this is pretty simple if you think about it. If you take 10% of 27.00 you get 2.7, right? So multiply that by 3 because 10 *3 = 30, and you get 8.1. Then subtract 27- 8.1 and you get your answer 18.9

Answer 14

I like to work problems of this type as follows:

30% off means that I still have 70% left. 30% + 70% = 100%.

So I multiply the original price by the percent that I have left:

$27.00 * 70% then directly gives me the answer in one step instead of two!