Question

Notebook cost $1.20 each. This weekend they will be on sale for $0.80. What percentage is the sale

Answer 1

The discount is $.40 (1.20 - 0.80)
To find the discount you take (0.40/1.20) * 100
=.33 * 100
The discount is 33%

Answer 2

33,33%

Explanation:

In order to calculate this you just need to figure out how much does the money that is being removed from the cost is in percentage, we know that the notebook costs 1.20 each, and they are on sale for .80, so to calculate the difference we withdraw from the total cost, the sale cost:

1,20-,80=,40

So the disscount is ,40 dollars, now we use a rule of three to calculate this, using 1,20 as the 100%:

`(1,20)/(100)= (,40)/(x) \\x=(100*,40)/(1,20)\\ x=33,33333`

So we get that the percentage of the disscount will be 33.33%