
Unit 3 Rates and Ratios Review
Flashcard
•
Mathematics
•
6th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
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.
2.
FLASHCARD QUESTION
Front
How do you convert a percentage to a decimal?
Back
To convert a percentage to a decimal, divide the percentage by 100. For example, 40% becomes 0.40.
3.
FLASHCARD QUESTION
Front
What is the formula to find a percentage of a number?
Back
To find a percentage of a number, multiply the number by the percentage (as a decimal). For example, to find 40% of 230, calculate 230 x 0.40 = 92.
4.
FLASHCARD QUESTION
Front
How many milligrams are in a gram?
Back
There are 1,000 milligrams in a gram.
5.
FLASHCARD QUESTION
Front
If the boy to girl ratio is 1:3, how many girls are there if there are 40 students?
Back
If the ratio is 1:3, then for every 1 boy, there are 3 girls. In 40 students, there are 10 boys and 30 girls.
6.
FLASHCARD QUESTION
Front
What is a scale on a map?
Back
A scale on a map shows the relationship between a distance on the map and the actual distance it represents.
7.
FLASHCARD QUESTION
Front
If the scale on a map is 5 cm : 12 km, how do you find the distance on the map for 144 km?
Back
To find the distance on the map, set up a proportion: 5 cm / 12 km = x cm / 144 km. Solving gives x = 60 cm.
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