
Proportion Word Problems
Flashcard
•
Mathematics
•
KG - University
•
Hard
Wayground Content
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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 solve a proportion?
Back
To solve a proportion, cross-multiply the two ratios and then solve for the unknown.
3.
FLASHCARD QUESTION
Front
What does it mean to scale a quantity?
Back
Scaling a quantity means to increase or decrease it by a certain factor.
4.
FLASHCARD QUESTION
Front
If Sue types 3 pages in the same time Mary types 4.5 pages, how do you find out how many pages Mary types when Sue types 11 pages?
Back
Set up a proportion: 3/4.5 = 11/x, then cross-multiply and solve for x.
5.
FLASHCARD QUESTION
Front
What is the formula for finding the expected number of items in a population?
Back
Expected number = (part/whole) * total population.
6.
FLASHCARD QUESTION
Front
If 14 out of 50 fish are trout, how do you estimate the number of trout in a lake with a population of 7,500?
Back
Use the proportion: 14/50 = x/7500, then solve for x.
7.
FLASHCARD QUESTION
Front
What is a ratio?
Back
A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.
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