Unit 5 Flashcard #2 Practice (Proportions)
Flashcard
•
Mathematics
•
7th - 8th Grade
•
Practice Problem
•
Hard
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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 find a percentage of a number?
Back
To find a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 45, calculate 45 * 0.20 = 9.
3.
FLASHCARD QUESTION
Front
What is the formula to convert seconds to minutes?
Back
To convert seconds to minutes, divide the number of seconds by 60.
4.
FLASHCARD QUESTION
Front
If 8 is what percent of 20, how do you calculate it?
Back
To find what percent 8 is of 20, use the formula: (part/whole) * 100. So, (8/20) * 100 = 40%.
5.
FLASHCARD QUESTION
Front
What does it mean if two ratios are equivalent?
Back
If two ratios are equivalent, it means they represent the same relationship between numbers.
6.
FLASHCARD QUESTION
Front
How can you express a ratio as a fraction?
Back
A ratio can be expressed as a fraction by placing the first quantity over the second quantity. For example, the ratio 3:4 can be expressed as 3/4.
7.
FLASHCARD QUESTION
Front
What is the relationship between fractions and proportions?
Back
Fractions can be used to express proportions, as a proportion is essentially an equation that equates two fractions.
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