Unit 4: Test Review
Flashcard
•
Mathematics
•
7th Grade
•
Hard
Standards-aligned
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14 questions
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1.
FLASHCARD QUESTION
Front
What is the formula to calculate percent change?
Back
Percent Change = (New Value - Old Value) / Old Value * 100
Tags
CCSS.6.RP.A.3C
2.
FLASHCARD QUESTION
Front
If a stock is bought for $15 and sold for $20, what is the percent increase?
Back
Increase of 33.3%.
Tags
CCSS.6.RP.A.3C
3.
FLASHCARD QUESTION
Front
How do you calculate the cost of multiple items based on a unit price?
Back
Cost = (Number of Items) * (Cost per Item). For example, if 3 apples cost $9.99, then 4 apples cost $13.32.
Tags
CCSS.6.RP.A.3B
4.
FLASHCARD QUESTION
Front
What is percent error and how is it calculated?
Back
Percent Error = (Estimated Value - Actual Value) / Actual Value * 100.
Tags
CCSS.6.RP.A.3C
5.
FLASHCARD QUESTION
Front
If you estimate sending 135 texts but actually sent 108, what is the percent error?
Back
Percent Error = (135 - 108) / 108 * 100 = 25%.
Tags
CCSS.6.RP.A.3C
6.
FLASHCARD QUESTION
Front
What does it mean to increase a quantity by a percentage?
Back
To increase a quantity by a percentage, multiply the original quantity by the percentage (as a decimal) and add it to the original quantity.
Tags
CCSS.6.RP.A.3C
7.
FLASHCARD QUESTION
Front
If a band writes 75% more songs than they expect to put on a CD, how do you calculate the total number of songs written?
Back
Total Songs Written = Expected Songs + (Expected Songs * 0.75). If they expect 16 songs, they write 28 songs.
Tags
CCSS.6.RP.A.3C
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