TEKS 6.4H Unit Rates & Unit Conversions

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 a value of one. For example, if a car travels 60 miles in 1 hour, the unit rate is 60 miles per hour.

Front

How do you convert yards to feet?

Back

To convert yards to feet, multiply the number of yards by 3, since there are 3 feet in a yard.

Front

What is the formula to calculate miles per gallon (mpg)?

Back

The formula to calculate miles per gallon is: mpg = miles driven / gallons of gas used.

Front

If Don drove 64 miles using 2 gallons of gas, what is his fuel efficiency in mpg?

Back

Don's fuel efficiency is 32 mpg (64 miles / 2 gallons = 32 mpg).

Front

How many feet are in 5 yards?

Back

There are 15 feet in 5 yards (5 yards x 3 feet/yard = 15 feet).

Front

What is the process to compare rates?

Back

To compare rates, convert them to the same unit and then compare the values. For example, to compare speeds, convert both to miles per hour.

Front

How do you find the length of a rope if you know the length of another rope and the difference in their lengths?

Back

Add the difference to the length of the known rope. For example, if one rope is 64 inches and the other is 20 inches longer, the second rope is 84 inches long.

Front

What is the conversion factor from ounces to pounds?

Back

The conversion factor is 16 ounces in 1 pound.

Front

How many pounds are in 112 ounces?

Back

112 ounces is equal to 7 pounds (112 oz / 16 oz/lb = 7 lb).

Front

What is a rate?

Back

A rate is a ratio that compares two quantities with different units, such as miles per hour or cost per item.