Ratio and proportions Practice
Flashcard
•
Mathematics
•
7th Grade
•
Hard
+4
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
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
Tags
CCSS.7.RP.A.2A
3.
FLASHCARD QUESTION
Front
How do you find the price per item when given the total cost and quantity?
Back
Divide the total cost by the quantity. For example, if John spent $36 on 4 basketballs, the price per basketball is $36 ÷ 4 = $9.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
4.
FLASHCARD QUESTION
Front
What is the constant of proportionality?
Back
The constant of proportionality is the ratio between two directly proportional quantities, often represented as 'k' in the equation y = kx.
Tags
CCSS.7.RP.A.2B
5.
FLASHCARD QUESTION
Front
What does it mean for a graph to be proportional?
Back
A graph is proportional if it is a straight line that passes through the origin (0,0).
Tags
CCSS.7.RP.A.2D
6.
FLASHCARD QUESTION
Front
If Craig earns $37 for 4 hours, how much does he earn per hour?
Back
To find the hourly rate, divide the total earnings by the number of hours: $37 ÷ 4 = $9.25 per hour.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
7.
FLASHCARD QUESTION
Front
What is the formula to find a missing value in a proportion?
Back
If a/b = c/d, then ad = bc. You can cross-multiply to find the missing value.
Tags
CCSS.7.RP.A.3
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