Ratios/Rates/Proportions
Flashcard
•
Mathematics
•
7th Grade
•
Hard
+2
Standards-aligned
Wayground Content
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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 rate?
Back
A rate is a specific kind of ratio that compares two quantities with different units, such as speed (miles per hour) or price per item.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
3.
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
4.
FLASHCARD QUESTION
Front
How do you calculate the unit cost?
Back
To calculate the unit cost, divide the total cost by the number of units. For example, if 15 pizzas cost $97.50, the unit cost is $97.50 ÷ 15 = $6.50 per pizza.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
5.
FLASHCARD QUESTION
Front
Which is a better buy: 12-pack of soda for $3.50 or 6-pack for $1.80?
Back
To find the better buy, calculate the cost per item. 12-pack: $3.50 ÷ 12 = $0.29 per soda; 6-pack: $1.80 ÷ 6 = $0.30 per soda. The 12-pack is the better buy.
Tags
CCSS.6.RP.A.3B
6.
FLASHCARD QUESTION
Front
If Maya earns $10 an hour, how many hours to earn $150?
Back
To find the hours, divide the total amount by the hourly wage: $150 ÷ $10 = 15 hours.
Tags
CCSS.6.RP.A.3B
7.
FLASHCARD QUESTION
Front
How do you find the cost of one item from a total cost?
Back
To find the cost of one item, divide the total cost by the number of items. For example, if 20 adult tickets cost $250, the cost per ticket is $250 ÷ 20 = $12.50.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
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