Rates and Unit Rates

Front

What is a rate?

Back

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

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if a car travels 60 miles in 1 hour, the unit rate is 60 miles per hour.

Front

How do you calculate the unit price of an item?

Back

To calculate the unit price, divide the total price by the number of units. For example, if a pack of 10 slices of cheese costs $2.48, the unit price is $2.48 ÷ 10 = $0.248 per slice.

Front

If a family buys 4 concert tickets for $252, what is the price per ticket?

Back

$63.00

Front

Which is the better buy: a 12 pack of Coke for $3.50 or a 6 pack for $1.80?

Back

The 12 pack of Coke is the better buy.

Front

How do you find the better deal between two products?

Back

Calculate the unit price for each product and compare them. The product with the lower unit price is the better deal.

Front

If Harry mowed 8 lawns and earned $96, how much did he earn for each lawn?

Back

$12 per lawn.

Front

What is the formula to find the total amount earned based on the rate and number of items?

Back

Total Amount = Rate × Number of Items.

Front

If water flows at a rate of 5 gallons every 25 seconds, how many gallons flow in 45 seconds?

Back

9 gallons.

Front

What is the relationship between rates and ratios?

Back

Rates are a specific type of ratio that compares two quantities with different units.