HELP! 72 students in school can ski, this is 24% of enrollment. how many are enrolled? How do I do this

Question

mathteacher1729 · Answer

The big idea with percentage problems like these is "X percent means X over 100".

$$32% = \frac{32}{100}$$
$$5% = \frac{5}{100}$$
etc...

So now the problem says 72 students out of (???) is the same as 24 out of 100.

So we set up this equation:

$$\frac{72}{X}=\frac{24}{100}$$

"72 out of (???) is the same as 24 out of 100."

Now just cross multiply and solve for X.  Hope this helps. :)

mathteacher1729 · Answer

Oh dear, something went wrong with the math formatting...

Here were the examples I was trying to type up:
$$32\% = \frac{32}{100}$$
$$5\% = \frac{5}{100}$$

Hope this works better..