Unit Rates/Percents

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity per one unit of another quantity.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the first quantity by the second quantity to find out how much of the first quantity corresponds to one unit of the second quantity.

Front

What is a percent?

Back

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

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 the result by 100.

Front

What is the formula to find the total cost based on unit price?

Back

Total Cost = Unit Price × Quantity.

Front

If 2 burritos cost $14, what is the cost of 1 burrito?

Back

The cost of 1 burrito is $7.

Front

How do you find the percentage of a number?

Back

To find the percentage of a number, multiply the number by the percentage (as a decimal). For example, to find 30% of 80, calculate 80 × 0.30 = 24.

Front

What is the relationship between percentages and fractions?

Back

Percentages can be converted to fractions by placing the percentage over 100 and simplifying if possible.

Front

How do you find the total distance traveled if you know the percentage completed?

Back

To find the total distance, divide the distance traveled by the percentage completed (as a decimal). For example, if 35 miles is 70%, then total distance = 35 / 0.70 = 50 miles.

Front

What is the formula to calculate the percentage of a total?

Back

Percentage = (Part / Whole) × 100.