Proportions

Flashcard
•
Mathematics
•
7th Grade
•
Hard
+7
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 set up a proportion to solve a problem?
Back
To set up a proportion, you can use the formula a/b = c/d, where a and b are the first ratio, and c and d are the second ratio.
Tags
CCSS.7.RP.A.2C
3.
FLASHCARD QUESTION
Front
What is the cross-multiplication method in solving proportions?
Back
The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio and setting the two products equal to each other.
Tags
CCSS.7.RP.A.3
4.
FLASHCARD QUESTION
Front
If 3 pounds of hamburger costs $6, what is the cost per pound?
Back
The cost per pound is $2.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
5.
FLASHCARD QUESTION
Front
How do you find the total cost when given a unit price and quantity?
Back
Multiply the unit price by the quantity to find the total cost.
Tags
CCSS.6.RP.A.3B
6.
FLASHCARD QUESTION
Front
What is the relationship between the size of a shadow and the height of an object?
Back
The size of a shadow is proportional to the height of the object casting it, assuming the light source is at a constant distance.
Tags
CCSS.7.RP.A.2A
7.
FLASHCARD QUESTION
Front
How can you use proportions to find an unknown height using shadows?
Back
Set up a proportion using the heights and shadow lengths of the known object and the unknown object.
Tags
CCSS.HSG.SRT.A.2
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