Unit 5 Rates & Proportions Review

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•
Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a unit rate?
Back
A unit rate is a comparison of two different quantities where one of the quantities is expressed as one unit. For example, if you buy 5 pounds of concrete for $40, the unit rate is $8 per pound.
2.
FLASHCARD QUESTION
Front
How do you calculate the unit rate?
Back
To calculate the unit rate, divide the total amount of one quantity by the total amount of the other quantity. For example, if you have 120 customers in 8 hours, the unit rate is 120 ÷ 8 = 15 customers per hour.
3.
FLASHCARD QUESTION
Front
What does it mean for two figures to be similar?
Back
Two figures are similar if they have the same shape but may differ in size. This means their corresponding angles are equal and their corresponding sides are in proportion.
4.
FLASHCARD QUESTION
Front
How do you find a missing side in similar figures?
Back
To find a missing side in similar figures, set up a proportion using the lengths of the corresponding sides of the figures and solve for the unknown side.
5.
FLASHCARD QUESTION
Front
What is a ratio?
Back
A ratio is a relationship between two quantities, showing how many times one value contains or is contained within the other. It can be expressed in different forms, such as '4 to 3' or 4:3.
6.
FLASHCARD QUESTION
Front
How do you write a ratio?
Back
A ratio can be written in three ways: using the word 'to' (e.g., 4 to 3), using a colon (e.g., 4:3), or as a fraction (e.g., 4/3).
7.
FLASHCARD QUESTION
Front
What is a proportional relationship?
Back
A proportional relationship is one where two quantities maintain a constant ratio or rate. If one quantity doubles, the other quantity also doubles.
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