Ratios Flashcards

(25 cards)

1
Q

What is a ratio?

A

A ratio is a relationship between two numbers that shows how many times the first number contains the second.

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2
Q

True or False: A ratio can be expressed in three different forms.

A

True

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3
Q

Fill in the blank: The ratio of 4 to 2 can be simplified to ___.

A

2 to 1

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4
Q

What does the term โ€˜proportionโ€™ mean in relation to ratios?

A

A proportion states that two ratios are equal.

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5
Q

If the ratio of boys to girls in a class is 3:2, how many boys are there if there are 10 girls?

A

15 boys

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6
Q

Express the ratio 8:12 in its simplest form.

A

2:3

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7
Q

Multiple Choice: Which of the following ratios is equivalent to 5:10? A) 1:2 B) 2:5 C) 3:5

A

A) 1:2

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8
Q

What is the cross-multiplication method used for in ratios?

A

It is used to determine if two ratios are equivalent.

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9
Q

True or False: Ratios can only compare two quantities.

A

False

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10
Q

In a recipe, the ratio of sugar to flour is 1:4. How much sugar is needed for 2 cups of flour?

A

0.5 cups of sugar

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11
Q

Fill in the blank: A ratio of 1:3 means for every ___ part of one quantity, there are ___ parts of another.

A

1, 3

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12
Q

What is a common application of ratios in real life?

A

Ratios are commonly used in cooking, finance, and comparing quantities.

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13
Q

If a map has a scale ratio of 1:50,000, what does this mean?

A

1 unit on the map represents 50,000 units in reality.

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14
Q

Multiple Choice: What is the ratio of 20 to 5? A) 4 B) 5 C) 1:4

A

A) 4

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15
Q

What is the ratio of 15 apples to 10 oranges expressed in simplest form?

A

3:2

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16
Q

True or False: The order of numbers in a ratio matters.

17
Q

If the ratio of cats to dogs is 4:3, what part of the total represents the dogs?

A

3 parts out of 7 total parts

18
Q

Fill in the blank: To combine ratios, you must ensure they have the same ___ first.

19
Q

What is the ratio of 50 to 25 expressed as a fraction?

20
Q

Multiple Choice: Which ratio represents the same relationship as 6:9? A) 2:3 B) 3:4 C) 1:1

21
Q

In a scale drawing, a ratio of 1:100 means what?

A

Every 1 unit in the drawing equals 100 units in real life.

22
Q

What is the ratio of 10 red marbles to 30 blue marbles?

23
Q

True or False: Ratios can be expressed as percentages.

24
Q

If a car travels 60 miles in 1 hour, what is the ratio of distance to time?

A

60 miles per hour

25
Fill in the blank: The ratio of 1:5 means for every ___ parts of one quantity, there are ___ parts of another.
1, 5