Warm up (Ratios/ Unit Rate/ Unit Rate with Fractions)

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

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something (e.g., miles per hour).

Front

How do you calculate a unit rate from a fraction?

Back

To calculate a unit rate from a fraction, divide the numerator by the denominator and then divide the result by the total quantity.

Front

If 3/4 of a gallon of paint costs $6, what is the unit rate?

Back

$8 per gallon.

Front

If 2/3 of a mile is traveled in 4 minutes, what is the unit rate in miles per minute?

Back

1/6 mile per minute.

Front

How do you find the speed in miles per hour?

Back

Speed is calculated by dividing the total distance traveled by the total time taken.

Front

If Mrs. Esposito drove 585 miles in 9 hours, what was her speed?

Back

65 mph.

Front

What is the unit rate of customers per hour if 120 customers are served in 8 hours?

Back

15 customers per hour.

Front

If 5/8 of a pound of apples costs $2.50, how do you find the unit rate in dollars per pound?

Back

Divide the cost by the fraction of the pound: $2.50 ÷ (5/8) = $4 per pound.

Front

What is the formula for calculating unit rate?

Back

Unit Rate = Total Quantity / Number of Units.