I have a pie chart with a total of 60 people. One type is 42 percent. How many people are there?
+79 In order to calculate based on percentage you need to know how decimals and percentages work.
For example if you've got a whole apple that is 100% of an apple.
If you've got half an apple, 50%, that is 0.5 apples.
You simply divide the percentage by 100 to get the decimal.
100%: 100/100=1
42%: 42/100=0.42
If you have 60 people as you say, and you want to know how many 42% of them are, you simply take the total amount times the decimal.
In this case, the way you solve it would be:
$${\frac{{\mathtt{42}}}{{\mathtt{100}}}} = {\mathtt{0.42}}$$
$${\mathtt{60}}{\mathtt{\,\times\,}}{\mathtt{0.42}} = {\mathtt{25.2}}$$
And as the previous answer mentioned, you can't have decimals in the answer when talking about number of people, so you round it to the closest whole number: 25.
+1197 60 times 42% is 25.2, but since there can't be a decimal number of people, the answer is 25 people.
+79 In order to calculate based on percentage you need to know how decimals and percentages work.
For example if you've got a whole apple that is 100% of an apple.
If you've got half an apple, 50%, that is 0.5 apples.
You simply divide the percentage by 100 to get the decimal.
100%: 100/100=1
42%: 42/100=0.42
If you have 60 people as you say, and you want to know how many 42% of them are, you simply take the total amount times the decimal.
In this case, the way you solve it would be:
$${\frac{{\mathtt{42}}}{{\mathtt{100}}}} = {\mathtt{0.42}}$$
$${\mathtt{60}}{\mathtt{\,\times\,}}{\mathtt{0.42}} = {\mathtt{25.2}}$$
And as the previous answer mentioned, you can't have decimals in the answer when talking about number of people, so you round it to the closest whole number: 25.
