Here is the way to figure out what the Total is:īy using a simple algebra we can re-arrange our Percent equation like this: So, that means that it must be the Total that's missing. How To: In this problem, we know that the Percent is 70, and we are also told that the Part of the marbles is red, so we know that the Part is 14. How many marbles does he have altogether?
Question: Your friend has a bag of marbles, and he tells you that 70 percent of the marbles are red.
