Comparing Rates and Costs

Front

What is a rate?

Back

A rate is a ratio that compares two different kinds of quantities, often expressed as a fraction or a percentage.

Front

What does it mean to compare costs?

Back

Comparing costs means looking at different prices for similar items to determine which one is cheaper or offers better value.

Front

How do you calculate the cost per unit?

Back

To calculate the cost per unit, divide the total cost by the number of units.

Front

If a protein bar costs $2 and has 40 grams, what is the cost per gram?

Back

The cost per gram is $2 ÷ 40 grams = $0.05 per gram.

Front

What is the importance of understanding protein content in food?

Back

Understanding protein content helps you choose foods that meet your dietary needs, especially for growth and energy.

Front

How do you determine which item is a better deal?

Back

To determine which item is a better deal, compare the cost per unit or the value you get for the price.

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit, making it easier to compare different rates.

Front

If Protein Bar A has 15 grams of protein in a 40 gram bar, what is the protein per gram?

Back

Protein per gram for Bar A is 15 grams ÷ 40 grams = 0.375 grams of protein per gram.

Front

If Protein Bar B has 20 grams of protein in a 60 gram bar, what is the protein per gram?

Back

Protein per gram for Bar B is 20 grams ÷ 60 grams = 0.333 grams of protein per gram.

Front

Which protein bar has more protein per gram, A or B?

Back

Protein Bar A has 0.375 grams of protein per gram, while Protein Bar B has 0.333 grams. So, Bar A has more protein per gram.