What is the formula to calculate a percentage?
Percent and Scale Factor Review

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Percentage = (Part / Whole) × 100
2.
FLASHCARD QUESTION
Front
What is 20% of 75?
Back
15
3.
FLASHCARD QUESTION
Front
How do you find the total amount if you know a percentage of it?
Back
Total = Part / (Percentage / 100)
4.
FLASHCARD QUESTION
Front
Michael spent $210 on school supplies and books. This amount was 30% of his savings. How much was his savings?
Back
$700
5.
FLASHCARD QUESTION
Front
What is percent error?
Back
Percent Error = |Estimated Value - Actual Value| / Actual Value × 100
6.
FLASHCARD QUESTION
Front
Ms. Brown estimated 70 students would try out for the Cross Country team. This year, only 63 students tried out. What was her percent error?
Back
11%
7.
FLASHCARD QUESTION
Front
What is the formula for percent change?
Back
Percent Change = (New Value - Old Value) / Old Value × 100
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