Setting Up & Setting Proportions
Flashcard
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
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14 questions
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1.
FLASHCARD QUESTION
Front
What is a proportion?
Back
A proportion is an equation that states that two ratios are equal.
2.
FLASHCARD QUESTION
Front
How do you set up a proportion?
Back
To set up a proportion, you can use the formula \( \frac{a}{b} = \frac{c}{d} \), where a and b are part of one ratio, and c and d are part of another.
3.
FLASHCARD QUESTION
Front
If a car travels 420 miles in 8 hours, what is its speed in miles per hour?
Back
The speed is \( \frac{420}{8} = 52.5 \) miles per hour.
4.
FLASHCARD QUESTION
Front
How far will a car travel in 12 hours at the same speed of 52.5 miles per hour?
Back
The car will travel \( 52.5 \times 12 = 630 \) miles.
5.
FLASHCARD QUESTION
Front
What is the relationship between the amount of cocoa and the amount of hot chocolate made?
Back
The relationship can be expressed as a proportion: \( \frac{6 \text{ tablespoons}}{24 \text{ ounces}} = \frac{x \text{ tablespoons}}{y \text{ ounces}} \).
6.
FLASHCARD QUESTION
Front
If 6 tablespoons of cocoa make 24 ounces of hot chocolate, how many ounces can be made with 144 tablespoons?
Back
Using the proportion, \( \frac{24}{?} = \frac{x}{144} \), the answer is 6.
7.
FLASHCARD QUESTION
Front
How do you find the expected duration of a product based on its size?
Back
You can set up a proportion based on the size and duration of a similar product.
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