Best Buy: Unit Rates

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What is a unit rate?

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A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. It is often used to determine the cost per unit or the efficiency of a product.

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How do you calculate the unit price of an item?

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To calculate the unit price, divide the total price of the item by the total quantity. For example, if 5 kg of rice costs $16.95, the unit price is $16.95 / 5 kg = $3.39 per kg.

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What is the significance of comparing unit rates?

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Comparing unit rates helps consumers determine which option offers the best value for money, allowing for informed purchasing decisions.

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How can you determine which car has better gas mileage?

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To determine which car has better gas mileage, calculate the miles per gallon (MPG) for each car by dividing the total miles driven by the gallons of gas used.

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What is the formula for calculating miles per gallon (MPG)?

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The formula for calculating MPG is: MPG = Total Miles Driven / Gallons of Gas Used.

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What does it mean if two items have the same unit price?

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If two items have the same unit price, it means they cost the same per unit, and the decision may depend on other factors such as quality, brand, or quantity.

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What is a best deal in terms of unit rates?

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The best deal is the option that offers the lowest unit price or the highest value for the same amount of money spent.

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How do you compare prices of different quantities?

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To compare prices of different quantities, calculate the unit price for each option and then compare those unit prices.

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What is the unit price of 11 oz of cereal costing $4.75?

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The unit price of 11 oz of cereal costing $4.75 is $4.75 / 11 oz = $0.43 per ounce.

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How do you find the better price per ounce between two cereal sizes?

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Calculate the unit price for each size by dividing the total price by the number of ounces, then compare the two unit prices.