Ratios/Percents

Front

What is a ratio?

Back

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

Front

How do you calculate the unit price?

Back

To calculate the unit price, divide the total cost by the number of items.

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part per hundred.

Front

How do you convert a fraction to a percent?

Back

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

Front

What is the formula for finding the percentage of a number?

Back

The formula is: (Part/Whole) x 100 = Percentage.

Front

If 8 apples cost $4.72, what is the cost per apple?

Back

$0.59 per apple.

Front

What is the ratio of red marbles to yellow marbles if there are 2 red and 5 yellow?

Back

The ratio is 2:5.

Front

How do you find the total number of students per class if there are 88 students in 4 classes?

Back

Divide the total number of students by the number of classes: 88 ÷ 4 = 22 students per class.

Front

If Player 1 made 17/25 free throws, how do you find the percentage of successful free throws?

Back

Divide 17 by 25 and multiply by 100 to get 68%.

Front

What is the unit price of 3 candy bars that cost $8.19?

Back

The unit price is $2.73.