Unit Rates

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as one unit. For example, if you buy 3 apples for $6, the unit rate is $2 per apple.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the total quantity by the number of units. For example, if you spend $40 on 5 pounds of concrete, the unit rate is $40 ÷ 5 = $8 per pound.

Front

If Mrs. Nuckels used 3 cups of flour to make 60 cookies, how many cups of flour does she use per cookie?

Back

To find the unit rate, divide 3 cups by 60 cookies: 3 ÷ 60 = 0.05 cups per cookie.

Front

What is the unit rate of cookies made per cup of flour if 3 cups make 60 cookies?

Back

To find the unit rate, divide 60 cookies by 3 cups: 60 ÷ 3 = 20 cookies per cup.

Front

How do you find the percentage of games won?

Back

To find the percentage of games won, divide the number of games won by the total number of games played and multiply by 100. For example, 95 wins out of 162 games is (95 ÷ 162) × 100 = 58.6%.

Front

What is the formula for calculating speed?

Back

Speed is calculated using the formula: Speed = Distance ÷ Time. For example, if a car travels 130 miles in 2 hours, the speed is 130 ÷ 2 = 65 miles per hour.

Front

What are the units for speed?

Back

The units for speed are typically expressed as distance per time, such as miles per hour (mph) or kilometers per hour (km/h).

Front

If a car is going 50 miles per hour, what does this mean?

Back

It means the car travels 50 miles in one hour.

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. For example, 1/4 = (1 ÷ 4) × 100 = 25%.

Front

What is the relationship between unit rates and ratios?

Back

Unit rates are a specific type of ratio that compares a quantity to one unit of another quantity.