Ratios

Flashcard
•
Mathematics
•
7th Grade
•
Hard
+4
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 relationship between two numbers indicating how many times the first number contains the second.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
2.
FLASHCARD QUESTION
Front
How do you calculate a unit rate?
Back
To calculate a unit rate, divide the quantity by the number of units. For example, if a store sees 120 customers in 8 hours, the unit rate is 120 ÷ 8 = 15 customers per hour.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
3.
FLASHCARD QUESTION
Front
What is the unit rate of $3.75 for 3 pounds of granola?
Back
The unit rate is $1.25 per pound, calculated by dividing $3.75 by 3.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
4.
FLASHCARD QUESTION
Front
How do you express a ratio in simplest form?
Back
To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor (GCD).
Tags
CCSS.6.RP.A.2
CCSS.6.RP.A.1
5.
FLASHCARD QUESTION
Front
What is the ratio of 2 hours of watching TV to 8 hours of sleeping?
Back
The ratio is 2:8, which can be simplified to 1:4.
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.2
6.
FLASHCARD QUESTION
Front
What does it mean to solve for a variable in a ratio?
Back
Solving for a variable in a ratio means finding the value of that variable that makes the ratio true.
7.
FLASHCARD QUESTION
Front
If 4/7 = 7/x, how do you solve for x?
Back
Cross-multiply to get 4x = 49, then divide both sides by 4 to find x = 12.25.
Tags
CCSS.7.RP.A.3
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