Solving Proportions

Flashcard
•
Mathematics
•
7th Grade
•
Hard
+8
Standards-aligned
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15 questions
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1.
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
2.
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
3.
FLASHCARD QUESTION
Front
If a/b = c/d, what is the cross-multiplication method?
Back
The cross-multiplication method states that a*d = b*c.
Tags
CCSS.5.NF.B.5B
4.
FLASHCARD QUESTION
Front
What is the first step in solving the proportion 3/x = 6/12?
Back
Cross-multiply to get 3*12 = 6*x.
Tags
CCSS.7.RP.A.2C
5.
FLASHCARD QUESTION
Front
What is the solution to the proportion 4/x = 8/16?
Back
x = 2.
Tags
CCSS.7.RP.A.2C
6.
FLASHCARD QUESTION
Front
If 5/10 = x/20, what is the value of x?
Back
x = 10.
Tags
CCSS.3.NF.A.3B
CCSS.4.NF.A.1
7.
FLASHCARD QUESTION
Front
Gracie brought 24 cookies for 3 classes. How many cookies per class?
Back
8 cookies per class.
Tags
CCSS.3.OA.A.3
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