Female : male
20 : 12
Now simplify by dividing both numbers by 4
20/4 : 12/4
5 : 3
Answer:
34.4
Step-by-step explanation:
10% is the same thing as 0.1 so 344 times 0.1 is 34.4
A percent (%) is equal to 1/100 (We actually don't call that 'per''cent' for no reason)
So 10% is actually 10 times % which is:
![10\% \\ 10(\frac{1}{100}) \\ \frac{10}{100} \\ \frac{1}{10}](https://tex.z-dn.net/?f=10%5C%25%20%5C%5C%2010%28%5Cfrac%7B1%7D%7B100%7D%29%20%5C%5C%20%5Cfrac%7B10%7D%7B100%7D%20%5C%5C%20%5Cfrac%7B1%7D%7B10%7D)
If you get a calculator and calculate 1/10 the calculator should give 0.1
You might be taught that to get the decimal form from percent you just move the decimal point to the left twice (like 34% -----> .34) but if you do this, you are essentially dividing by 100 or multiplying by 1/100
now you know 10% is 0.1 the next thing to do is multiply it to 344.
![344(\frac{1}{10}) \\ \frac{344}{10} \\ 34.4](https://tex.z-dn.net/?f=344%28%5Cfrac%7B1%7D%7B10%7D%29%20%5C%5C%20%5Cfrac%7B344%7D%7B10%7D%20%5C%5C%2034.4)
All you have to do to find what number a certain number is a certain percentage of is to divide the known number by the percentage that it is reduced by.
To do this, we must first convert the percentage into a decimal. To do this, we can either divide the percentage by 100, or (my personal shortcut) just shift the decimal point over two places to the left.
40% = 0.4
Now, we divide the known by the percentage/decimal.
72 / 0.4 = 180
72 is 40% of 180.
Hope that helped! =)
19% out of a hundred. so unlikely, but the answer is 19%
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