Solving Linear Proportions
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a linear proportion?
Back
A linear proportion is a relationship between two quantities where the ratio of the two quantities remains constant.
Tags
CCSS.8.EE.B.5
2.
FLASHCARD QUESTION
Front
How do you solve for a variable in a linear proportion?
Back
To solve for a variable in a linear proportion, set up the equation based on the given ratios and cross-multiply to isolate the variable.
Tags
CCSS.6.EE.B.7
3.
FLASHCARD QUESTION
Front
What does cross-multiplication mean in solving proportions?
Back
Cross-multiplication involves multiplying the numerator of one ratio by the denominator of the other ratio to create an equation.
4.
FLASHCARD QUESTION
Front
If a/b = c/d, what is the cross-multiplication result?
Back
The result is ad = bc.
Tags
CCSS.4.NF.A.1
CCSS.5.NF.B.5B
5.
FLASHCARD QUESTION
Front
What is the first step in solving the proportion 3/4 = x/12?
Back
The first step is to cross-multiply: 3 * 12 = 4 * x.
Tags
CCSS.7.RP.A.2C
6.
FLASHCARD QUESTION
Front
What is the solution for x in the proportion 3/4 = x/12?
Back
x = 9.
Tags
CCSS.7.RP.A.2C
7.
FLASHCARD QUESTION
Front
How do you check if two ratios are proportional?
Back
To check if two ratios are proportional, cross-multiply and see if the products are equal.
Tags
CCSS.7.RP.A.2A
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