trigonometry Flashcards
(26 cards)
What is a ratio?
A ratio is a relationship between two numbers indicating how many times the first number contains the second.
True or False: A ratio can be expressed as a fraction.
True
If the ratio of cats to dogs is 3:4, how many cats are there if there are 12 dogs?
9 cats
What is the simplified form of the ratio 20:25?
4:5
Fill in the blank: The ratio of A to B is expressed as A:B.
A:B
What does a ratio of 1:1 indicate?
It indicates that the two quantities are equal.
If the ratio of boys to girls in a class is 2:3, what fraction of the class is boys?
2/5
True or False: Ratios can only compare two quantities.
False
What is the term for a ratio that compares a part to the whole?
Part-to-whole ratio
In a ratio of 5:2, what is the total number of parts?
7 parts
What is the ratio of 10 to 50 in simplest form?
1:5
If a recipe requires a ratio of 2:1 for flour to sugar, how much flour is needed for 3 cups of sugar?
6 cups of flour
True or False: The order of numbers in a ratio matters.
True
What type of ratio is used to compare different units, such as miles per hour?
Rate
Fill in the blank: The ratio of 15 to 45 can be simplified to ____.
1:3
What is the ratio of 8 apples to 12 oranges in simplest form?
2:3
If the ratio of red to blue marbles is 1:4, how many blue marbles are there if there is 1 red marble?
4 blue marbles
What is the term for a ratio that expresses a relationship between two similar types of quantities?
Proportional ratio
True or False: Ratios can be represented using decimals.
True
What is the cross-multiplication method used for in ratios?
To determine if two ratios are equivalent.
If the ratio of two numbers is 3:5 and the sum of the two numbers is 64, what are the two numbers?
24 and 40
Fill in the blank: A ratio of 7:3 means for every 7 units of the first quantity, there are ____ units of the second quantity.
3
What is an equivalent ratio to 4:6?
2:3
True or False: Ratios can be used in financial analysis.
True
