What is a percent?
Percent Proportions

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•
Mathematics
•
6th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A percent is a ratio expressed as a fraction of 100. It represents how much of something exists in relation to a whole.
2.
FLASHCARD QUESTION
Front
How do you calculate the percentage of a number?
Back
To calculate the percentage of a number, multiply the number by the percentage (as a decimal). For example, to find 20% of 50, calculate 50 x 0.20 = 10.
3.
FLASHCARD QUESTION
Front
What is the formula for finding the total amount after tax?
Back
Total Amount = Original Price + (Original Price x Tax Rate). For example, if the original price is $80 and the tax rate is 10%, Total Amount = 80 + (80 x 0.10) = $88.
4.
FLASHCARD QUESTION
Front
How do you find what percentage one number is of another?
Back
To find what percentage one number is of another, divide the first number by the second number and multiply by 100. For example, to find what percentage 3 is of 27, calculate (3/27) x 100 = 11.11%.
5.
FLASHCARD QUESTION
Front
What is 50% of a number?
Back
50% of a number is the same as dividing that number by 2. For example, 50% of 75 is 75 / 2 = 37.5.
6.
FLASHCARD QUESTION
Front
How do you calculate the percentage of a group?
Back
To calculate the percentage of a group, divide the number of items in the subgroup by the total number of items in the group and multiply by 100. For example, if 20 out of 100 students like a snack, the percentage is (20/100) x 100 = 20%.
7.
FLASHCARD QUESTION
Front
If 8 out of 10 people buy lunch, what percentage do not buy lunch?
Back
To find the percentage that do not buy lunch, subtract the percentage that do buy lunch from 100%. If 8 out of 10 buy lunch, then 2 out of 10 do not, which is (2/10) x 100 = 20%.
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