6H Review Of Ratios, Rates and Percents

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

What does it mean if two quantities are in a proportional relationship?

Back

It means that the two quantities maintain a constant ratio to each other.

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100, represented by the symbol %.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

Front

What is the formula to find a percentage of a number?

Back

To find a percentage of a number, multiply the number by the percentage (in decimal form).

Front

What is 50% of 200?

Back

100

Front

How do you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor.

Front

What is the ratio of 8 to 12 in simplest form?

Back

2 to 3

Front

If a pie chart shows that 25% of the chart is one category, how many degrees does that represent?

Back

25% of 360 degrees is 90 degrees.

Front

What is the relationship between rates and ratios?

Back

A rate is a specific type of ratio that compares two quantities with different units.