7th Grade Math Data Test

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

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit. For example, if you travel 150 miles on 5 gallons, the unit rate is 30 miles per gallon.

Front

What does it mean for a graph to be proportional?

Back

A graph is proportional if it passes through the origin (0,0) and shows a constant ratio between the two variables.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship does not maintain a constant ratio and does not pass through the origin.

Front

How do you find the cost per item?

Back

To find the cost per item, divide the total cost by the number of items.

Front

What is the formula for finding the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If you travel 150 miles on 5 gallons, how far do you travel per gallon?

Back

30 miles per gallon.

Front

What is the simplest form of the ratio 15 girls to 6 boys?

Back

5/2.

Front

How do you determine which brand costs the least?

Back

Compare the total costs of each brand and identify the one with the lowest total.