TEKS 7.4 D Ratios/Rates/Percentages

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:b'.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is the ratio of 4 to 3 expressed in fraction form?

Back

The ratio of 4 to 3 can be expressed as the fraction 4/3.

Front

If the ratio of almonds to raisins is 4:3 and there are 600 almonds, how many raisins are there?

Back

450 raisins.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as miles per hour or price per item.

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100, often used to compare relative sizes.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100.

Front

If there are 18 girls in a class and the ratio of boys to girls is 2:3, how many boys are there?

Back

12 boys.

Front

What is the total number of students if the ratio of boys to girls is 2:3 and there are 18 girls?

Back

30 students.

Front

How do you find the total quantity when given a ratio and one part?

Back

To find the total quantity, add the parts of the ratio together and then use the known quantity to find the other part.