Finding the OG - Percent Increase/Decrease
Flashcard
•
Mathematics
•
7th Grade
•
Hard
Standards-aligned
Wayground Content
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16 questions
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1.
FLASHCARD QUESTION
Front
What is the formula to find the original price after a percentage decrease?
Back
Original Price = Sale Price / (1 - Percentage Decrease)
Tags
CCSS.6.RP.A.3C
2.
FLASHCARD QUESTION
Front
What is the formula to find the original price after a percentage increase?
Back
Original Price = New Price / (1 + Percentage Increase)
Tags
CCSS.6.RP.A.3C
3.
FLASHCARD QUESTION
Front
If a class has decreased by 25% and now has 21 students, how do you find the original number of students?
Back
Let x be the original number of students. Then, x - 0.25x = 21, which simplifies to 0.75x = 21. Thus, x = 21 / 0.75 = 28.
Tags
CCSS.6.RP.A.3C
4.
FLASHCARD QUESTION
Front
How do you calculate the original price of an item that has been discounted?
Back
Original Price = Discounted Price / (1 - Discount Percentage)
Tags
CCSS.6.RP.A.3C
5.
FLASHCARD QUESTION
Front
What does a 30% discount mean in terms of original price?
Back
A 30% discount means the item is sold for 70% of its original price.
Tags
CCSS.6.RP.A.3C
6.
FLASHCARD QUESTION
Front
If a temperature increases by 2%, how do you find the previous temperature?
Back
Let y be the previous temperature. Then, y + 0.02y = Current Temperature, or 1.02y = Current Temperature. Thus, y = Current Temperature / 1.02.
Tags
CCSS.6.RP.A.3C
7.
FLASHCARD QUESTION
Front
What is the relationship between percentage decrease and original value?
Back
Percentage decrease is calculated as (Original Value - New Value) / Original Value.
Tags
CCSS.6.RP.A.3C
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