Proportions Review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you simplify a ratio?

Back

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

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

How do you find the unit rate from a total cost?

Back

To find the unit rate, divide the total cost by the number of items. For example, if 8 soccer balls cost $72.50, the unit rate is $72.50 ÷ 8.

Front

Convert 50 millimeters to centimeters.

Back

50 millimeters is equal to 5 centimeters.

Front

What is the relationship between milliliters and liters?

Back

1 liter is equal to 1000 milliliters.

Front

If the ratio of red cars to blue cars is 6:3, what is the simplified ratio?

Back

The simplified ratio is 2:1.

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they can be simplified to the same form.

Front

How do you determine if two ratios are equivalent?

Back

To determine if two ratios are equivalent, cross-multiply and compare the products.

Front

What is the formula to convert liters to milliliters?

Back

To convert liters to milliliters, multiply the number of liters by 1000.