7th Rate, Ratio, Proportion Mid
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a rate?
Back
A rate is a ratio that compares two different kinds of quantities, often expressed as a fraction. For example, speed is a rate that compares distance to time.
2.
FLASHCARD QUESTION
Front
Define ratio.
Back
A ratio is a comparison of two quantities by division. It shows how many times one value contains or is contained within the other.
3.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal. For example, if a/b = c/d, then a, b, c, and d are in proportion.
4.
FLASHCARD QUESTION
Front
If 2 supervisors are needed for every 18 babies, how many supervisors are needed for 36 babies?
Back
4 supervisors (since 36 babies require double the number of supervisors compared to 18 babies).
5.
FLASHCARD QUESTION
Front
Write the equation that represents the relationship between supervisors (x) and babies (y) when there are 2 supervisors for every 18 babies.
Back
y = 9x.
6.
FLASHCARD QUESTION
Front
What is the unit rate of 5 kilometers per hour?
Back
5 kilometers per hour means that for every hour, 5 kilometers are traveled.
7.
FLASHCARD QUESTION
Front
How do you convert a ratio to a fraction?
Back
To convert a ratio to a fraction, write the first quantity as the numerator and the second quantity as the denominator.
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