Ratios and Proportions 6th Grade Flashcard Review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b'.

Front

How do you write the ratio of girls to boys if there are 7 girls and 5 boys?

Back

7 to 5

Front

If the ratio of boys to girls is 3 to 2 and there are 12 boys, how many girls are there?

Back

8 girls

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

If 6 boys are to 5 girls, how many girls are there if there are 18 boys?

Back

15 girls

Front

How do you solve for k in the proportion 5/15 = k/45?

Back

k = 15.

Front

What does it mean if two ratios are equivalent?

Back

It means they represent the same relationship between quantities.

Front

If a truck gets 25 miles per gallon, how far can it go on 7 gallons?

Back

175 miles.

Front

What is the formula to find a missing value in a proportion?

Back

Cross-multiply and solve for the unknown.

Front

If the ratio of boys to girls is 4 to 3, what is the total number of students if there are 16 boys?

Back

12 girls, making a total of 28 students.