What is the formula to calculate a percentage increase?
7th Grad math

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Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Percentage Increase = (New Value - Original Value) / Original Value * 100
2.
FLASHCARD QUESTION
Front
If a store buys an item for $15 and marks it up by 400%, what is the sale price?
Back
Sale Price = Original Price + (Markup Percentage * Original Price) = $15 + (4 * $15) = $75
3.
FLASHCARD QUESTION
Front
What is a ratio?
Back
A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.
4.
FLASHCARD QUESTION
Front
How do you simplify the ratio of total students to boys if there are 12 girls and 16 boys?
Back
Total students = 12 + 16 = 28. Ratio = Total Students : Boys = 28 : 16 = 7 : 4 (simplified).
5.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
6.
FLASHCARD QUESTION
Front
How do you solve a proportion?
Back
Cross-multiply the two ratios and set them equal to each other, then solve for the unknown.
7.
FLASHCARD QUESTION
Front
What is the value of the expression 6 * 8?
Back
48
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