Pre-Algebra Ch. 5 Review (Ratios and Proportions)

Flashcard
•
Mathematics
•
7th Grade
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a ratio?
Back
A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
2.
FLASHCARD QUESTION
Front
How do you express a ratio in simplest form?
Back
To express a ratio in simplest form, divide both terms of the ratio by their greatest common factor.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
3.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
Tags
CCSS.7.RP.A.2A
4.
FLASHCARD QUESTION
Front
How do you solve a proportion?
Back
To solve a proportion, cross-multiply the terms and then solve for the unknown variable.
Tags
CCSS.7.RP.A.2C
5.
FLASHCARD QUESTION
Front
What does it mean for two ratios to be equivalent?
Back
Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same fraction.
Tags
CCSS.6.RP.A.3A
6.
FLASHCARD QUESTION
Front
If 3:5 is equivalent to x:20, what is the value of x?
Back
x = 12.
7.
FLASHCARD QUESTION
Front
How do you convert a ratio to a fraction?
Back
To convert a ratio to a fraction, write the first term as the numerator and the second term as the denominator.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
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