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Answer:
[tex]\frac{x}{100} =[/tex] the value you are solving for over total value.
Step-by-step explanation:
The way I learned it was like this:
Let's say you're trying to find the percent of red marbles there are in a pile. You have 24 red marbles and there are 48 in all. Set it up like so:
[tex]\frac{x}{100} =\frac{24}{48}[/tex]
x is over 100 because all percents are out of 100, and 24 is over 48 because that's the value you are trying to solve the percent for. Then cross-multiply.
[tex]\frac{x}{100} =\frac{24}{48}\\48(x)=24(100)\\48x=2400[/tex]
Then divide.
[tex]48x[/tex] ÷[tex]48x=2400[/tex] ÷ [tex]48[/tex]
[tex]x=50[/tex]
So the percentage is fifty.