This problem is quite difficult if you don't remember a technique to solving it. I will help teach you this tactic. First, set the percentage over 100, which is 48/100 as a fraction (which is what "over 100" means). Now, put 12 over x, which is the total amount of students in the class. It should look like this: 12/x. Now that we've done this, set them up as a proportion. Your proportion should be: 12/x = 48/100 This is where it becomes a little confusing if you do not remember this correctly. Cross multiply the denominator (the bottom number of a fraction) of 12/x by the numerator (the top number of a fraction) of 48/100. This number should be: 48x. Now, cross multiply the denominator of 48/100 by the numerator of 12/x. This number should be: 1200. Our equation now is: 48x = 1200. To solve for this, divide both sides by 48 to solve for x. 48x / 48 = x 1200 / 48 = 25. Your equation and solved problem is: There are 25 total students. I hope this taught you something and I hope it's very helpful!
