Ratios, Rates and Unit Rates

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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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 that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.
2.
FLASHCARD QUESTION
Front
What is a rate?
Back
A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price (cost per item).
3.
FLASHCARD QUESTION
Front
What is a unit rate?
Back
A unit rate is a rate in which the second quantity is one unit, allowing for easy comparison. For example, if a car travels 120 miles in 2 hours, the unit rate is 60 miles per hour.
4.
FLASHCARD QUESTION
Front
How do you calculate a unit rate?
Back
To calculate a unit rate, divide the first quantity by the second quantity. For example, if you have 150 words typed in 3 minutes, the unit rate is 150 ÷ 3 = 50 words per minute.
5.
FLASHCARD QUESTION
Front
What is the unit rate of 567 miles in 9 hours?
Back
63 mph.
6.
FLASHCARD QUESTION
Front
If Justin can type 408 words in 4 minutes, how many words can he type per minute?
Back
102 words per minute.
7.
FLASHCARD QUESTION
Front
How do you find the cost per item in a box of diapers?
Back
Divide the total cost by the number of items. For example, if a box of 35 diapers costs $6.99, the cost per diaper is $6.99 ÷ 35 = $0.20.
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