What is the formula to calculate the percentage of a number?
7th Grade Math PSSA Review

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•
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
If fingernails grow at a rate of 1.5 inches per year, how do you calculate the time to reach a certain length?
Back
Time (years) = Desired Length (inches) / Growth Rate (inches per year)
3.
FLASHCARD QUESTION
Front
How do you determine the amount of an ingredient needed when scaling a recipe?
Back
New Amount = (Desired Yield / Original Yield) * Original Amount
4.
FLASHCARD QUESTION
Front
What is the relationship between the dimensions of similar shapes?
Back
The ratio of corresponding dimensions of similar shapes is constant.
5.
FLASHCARD QUESTION
Front
What is a right angle?
Back
A right angle is an angle that measures exactly 90 degrees.
6.
FLASHCARD QUESTION
Front
How do you convert a fraction to a percentage?
Back
Percentage = (Fraction * 100)%
7.
FLASHCARD QUESTION
Front
What is the formula for finding the area of a rectangle?
Back
Area = Length * Width
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