
Ratio and Proportion Word Problems
Flashcard
•
Mathematics
•
9th 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
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 solve a proportion?
Back
To solve a proportion, cross-multiply the two ratios and set the products equal to each other.
Tags
CCSS.7.RP.A.3
4.
FLASHCARD QUESTION
Front
What is the formula for finding a missing value in a proportion?
Back
If a/b = c/d, then ad = bc, where a, b, c, and d are the values in the proportion.
Tags
CCSS.7.RP.A.3
5.
FLASHCARD QUESTION
Front
If 30 out of 50 students like pizza, what is the ratio of students who like pizza to those surveyed?
Back
The ratio is 30:50, which simplifies to 3:5.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
6.
FLASHCARD QUESTION
Front
How do you find the expected number of students who like pizza if 190 students are surveyed?
Back
Use the ratio 30/50 = x/190. Cross-multiply to find x = (30 * 190) / 50 = 114.
Tags
CCSS.7.RP.A.3
7.
FLASHCARD QUESTION
Front
If a truck travels 160 miles on 20 gallons of gas, what is the rate of miles per gallon?
Back
The rate is 160 miles / 20 gallons = 8 miles per gallon.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
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