Ratios and Proportions

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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.
2.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
3.
FLASHCARD QUESTION
Front
How do you solve a proportion?
Back
To solve a proportion, cross-multiply the terms and then solve for the unknown variable.
4.
FLASHCARD QUESTION
Front
What is a unit rate?
Back
A unit rate is a ratio that compares a quantity to one unit of another quantity, typically having a denominator of 1.
5.
FLASHCARD QUESTION
Front
If the ratio of cats to dogs is 3 to 5, how do you find the number of cats if you know the number of dogs?
Back
Use the ratio to set up a proportion: 3/5 = x/number of dogs, then solve for x.
6.
FLASHCARD QUESTION
Front
What is the formula to find the total cost when given a price per unit?
Back
Total Cost = Price per Unit × Number of Units.
7.
FLASHCARD QUESTION
Front
If 6 pounds of hamburger meat costs $12, what is the cost per pound?
Back
Cost per pound = Total Cost / Total Pounds = $12 / 6 = $2 per pound.
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