Percent Change and Error - Check In
Flashcard
•
Mathematics
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is percent error?
Back
Percent error is a measure of how inaccurate a measurement is, expressed as a percentage of the difference between the estimated value and the actual value.
2.
FLASHCARD QUESTION
Front
How do you calculate percent error?
Back
Percent error = |(Estimated Value - Actual Value)| / Actual Value × 100%.
3.
FLASHCARD QUESTION
Front
What is the formula for percent decrease?
Back
Percent decrease = (Original Price - Sale Price) / Original Price × 100%.
4.
FLASHCARD QUESTION
Front
If a price decreases from $80 to $60, what is the percent decrease?
Back
Percent decrease = (80 - 60) / 80 × 100% = 25%.
5.
FLASHCARD QUESTION
Front
What is the formula for percent increase?
Back
Percent increase = (New Value - Original Value) / Original Value × 100%.
6.
FLASHCARD QUESTION
Front
If a population increases from 200 to 250, what is the percent increase?
Back
Percent increase = (250 - 200) / 200 × 100% = 25%.
7.
FLASHCARD QUESTION
Front
What does a percent change of 0% indicate?
Back
A percent change of 0% indicates that there has been no change in value.
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