Unit Rates and Proportions
Flashcard
•
Mathematics
•
6th - 8th Grade
•
Hard
+2
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a unit rate?
Back
A unit rate is a comparison of two different quantities when they are combined together. It expresses how many units of one quantity correspond to one unit of another quantity.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
2.
FLASHCARD QUESTION
Front
How do you calculate the unit rate?
Back
To calculate the unit rate, divide the total quantity of one item by the total quantity of another item. For example, if a car travels 440 miles in 8 hours, the unit rate is 440 miles ÷ 8 hours = 55 miles per hour.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
3.
FLASHCARD QUESTION
Front
If Zoe played 40 chords in 8 minutes, how many chords does she play per minute?
Back
Zoe plays 40 chords ÷ 8 minutes = 5 chords per minute.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
4.
FLASHCARD QUESTION
Front
If Zoe practices for 5 minutes, how many chords will she play?
Back
If Zoe plays 5 chords per minute, in 5 minutes she will play 5 chords/minute × 5 minutes = 25 chords.
Tags
CCSS.3.OA.A.3
5.
FLASHCARD QUESTION
Front
What is the unit price of a 2-pack of plastic flower pots that costs $1.52?
Back
The unit price is $1.52 ÷ 2 = $0.76 or 76 cents per pot.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
6.
FLASHCARD QUESTION
Front
What does it mean for two ratios to be equivalent?
Back
Two ratios are equivalent if they represent the same relationship between quantities. For example, the ratios 2:1 and 16:8 are equivalent because both simplify to 2:1.
Tags
CCSS.6.RP.A.3A
7.
FLASHCARD QUESTION
Front
How do you determine if two ratios are equivalent?
Back
To determine if two ratios are equivalent, cross-multiply and compare the products. If the products are equal, the ratios are equivalent.
Tags
CCSS.6.RP.A.3A
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