What is the formula to calculate the percentage of a number?
6.3 HW 12/13

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Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Percentage = (Part / Whole) × 100
2.
FLASHCARD QUESTION
Front
How do you convert a percentage to a decimal?
Back
Divide the percentage by 100.
3.
FLASHCARD QUESTION
Front
What is 20% of 45?
Back
9
4.
FLASHCARD QUESTION
Front
How do you find the percent change?
Back
Percent Change = ((New Value - Old Value) / Old Value) × 100
5.
FLASHCARD QUESTION
Front
Ms Thomas bought stock for $15 a share and sold it at $20 a share. What is the percent change?
Back
Increase of 33.3%.
6.
FLASHCARD QUESTION
Front
How do you convert a decimal to a percentage?
Back
Multiply the decimal by 100.
7.
FLASHCARD QUESTION
Front
Change 32% into a decimal.
Back
.32
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