6.4(B) apply qualitative and quantitative reasoning to solve prediction and comparison of real-world problems involving ratios and rates.

Rate

A quantity measured with respect to another measured quantity.

Proportion

An equation that states that two ratios are equivalent. An equation that states two ratios are equal.

Per

For each; for every. Each; for each one.

Compare

To identify ways that multiple things are alike. Show how things are similar or different.

Expression

A mathematical phrase that contains operations, numbers, and/or variables without an equal sign.

Unit rate

A rate with a denominator of 1.

Ratio

A relationship between two quantities, normally expressed as the quotient of one divided by the other. For example, if a box contains six red marbles and four blue marbles, the ratio of red marbles to blue marbles is 6 to 4, also written 6:4. A ratio can also be expressed as a decimal or percentage.

Equivalent

Having the same value, equal in value, equal in amount or value.