Proportion Word Problems

Flashcard
•
Mathematics
•
7th - 8th Grade
•
Hard
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15 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 from a word problem?
Back
Identify the two quantities being compared, write their ratios, and set them equal to each other.
3.
FLASHCARD QUESTION
Front
What is the cross-multiplication method in solving proportions?
Back
Cross-multiplication involves multiplying the numerator of one ratio by the denominator of the other ratio to find the unknown.
4.
FLASHCARD QUESTION
Front
If a recipe calls for 2 cups of sugar for every 5 cups of flour, what is the ratio of sugar to flour?
Back
The ratio of sugar to flour is 2:5.
5.
FLASHCARD QUESTION
Front
How do you find an unknown quantity in a proportion?
Back
Set up the proportion, cross-multiply, and solve for the unknown.
6.
FLASHCARD QUESTION
Front
What is the scale factor in a model?
Back
The scale factor is the ratio of the dimensions of the model to the dimensions of the actual object.
7.
FLASHCARD QUESTION
Front
If a model car is 3 inches wide and the actual car is 4 feet wide, what is the scale factor?
Back
The scale factor is 1:16 (3 inches to 48 inches).
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