U3 Pt.1 Test: Ratios, Percents and Proportions

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100, representing a part of a whole.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total amount by the number of units, resulting in a rate per one unit.

Front

If you earn $9 per hour, how much do you earn in 3 hours?

Back

$27.

Front

What is the unit rate if you spend $40 on 5 pounds of concrete?

Back

$8 per pound.

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if the ratio between two quantities remains constant.

Front

How do you convert miles per hour to miles per day?

Back

Multiply the speed in miles per hour by the number of hours in a day (24 hours).

Front

What is the unit in the denominator of a unit rate?

Back

1.

Front

If a table does not represent a proportional relationship, what does that imply?

Back

It implies that the ratios of the quantities do not remain constant.