Ratios Flashcards

(31 cards)

1
Q

What is a ratio?

A

A ratio is a comparison between two quantities, showing how many times one value contains or is contained within the other.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

True or False: The ratio 2:3 is equivalent to 4:6.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

If a recipe calls for a ratio of 3:2 of flour to sugar, how much flour is needed for 10 cups of sugar?

A

15 cups of flour

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the simplest form of the ratio 8:12?

A

2:3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Fill in the blank: The ratio of boys to girls in a class is 5:7. If there are 35 girls, there are _____ boys.

A

25 boys

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the method to simplify ratios?

A

Divide both parts of the ratio by their greatest common divisor (GCD).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Multiple Choice: Which of the following ratios is equivalent to 1:4? A) 2:8 B) 3:12 C) 5:20 D) All of the above

A

D) All of the above

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How do you express the ratio of 15 to 5 in simplest form?

A

3:1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

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

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

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

A

60 miles:1 hour

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is a part-to-part ratio?

A

A part-to-part ratio compares different parts of a whole to each other.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Fill in the blank: In the ratio 4:9, the first number is _____ than the second number.

A

smaller

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What does a ratio of 1:1 signify?

A

It signifies that both quantities are equal.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Multiple Choice: If the ratio of cats to dogs is 2:3, what is the total number of parts? A) 5 B) 6 C) 7 D) 8

A

A) 5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How do you convert a ratio into a fraction?

A

By writing the first number as the numerator and the second number as the denominator.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

True or False: Ratios can only be expressed in whole numbers.

17
Q

What is the ratio of 50 to 100 in simplest form?

18
Q

If the ratio of red balls to blue balls is 3:5 and there are 15 red balls, how many blue balls are there?

A

25 blue balls

19
Q

Fill in the blank: The ratio of 10 to 15 can also be expressed as _____:1.

20
Q

What is an example of a part-to-whole ratio?

A

The ratio of boys to total students in a class.

21
Q

Multiple Choice: Which ratio is larger? A) 4:5 B) 2:3 C) 3:4 D) 1:1

22
Q

True or False: Ratios can be used in real-life situations.

23
Q

What is the ratio of 100 to 25 in simplest form?

24
Q

Fill in the blank: If the ratio of apples to oranges is 6:4, then there are _____ apples for every 2 oranges.

25
How can you compare two ratios?
By finding a common denominator or converting them to fractions.
26
What is a ratio table?
A table that shows equivalent ratios in a structured format.
27
Multiple Choice: If the ratio of students to teachers is 20:1, how many teachers are there if there are 100 students? A) 4 B) 5 C) 6 D) 2
B) 5
28
What does it mean if a ratio is expressed as a decimal?
It indicates the proportion of one quantity to another in decimal form.
29
If the ratio of pencils to pens is 7:3, what is the total number of items if there are 21 pencils?
30 items
30
True or False: A ratio can be written as a percentage.
True
31
What is the first step to solving a ratio word problem?
Identify the quantities being compared and their relationship.