## anonymous 5 years ago 25/100 =x/100 would that be 60% when the problem is solved?

1. mathteacher1729

Are you sure you copied the problem correctly? $\frac{25}{100} = \frac{x}{100}$ The denominators are the same (they are both 100) so the numerators must be the same... that means x = 25.

2. anonymous

The orginal question is what percent of 25 is 15?

3. anonymous

25/15 x/100

4. bahrom7893

Set up a proportion: 25 - 100% 15 - x% x = (15*100)/25

5. bahrom7893

x = 60

6. bahrom7893

x = 60% I meant

7. mathteacher1729

Percentage is always "something over 100" 4/100 = 4 % 35/100 = 35 % and so on. So asking "what percentage of 25 is 15" is really asking: $\frac{15}{25}=\frac{x}{100}$ From here you can cross multiply just like Bahrom did and have: $x=\frac{15*100}{25}$ There is lots of canceling here, and you get x = 60, which means 60% in this case. :)