Ratios, Unit Rate, Double Number Line Percents intro

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

How do you express a ratio as a fraction?

Back

To express a ratio as a fraction, write the first quantity as the numerator and the second quantity as the denominator.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per'.

Front

If 5 apples cost $2, what is the unit rate per apple?

Back

The unit rate is $0.40 per apple.

Front

What is a double number line?

Back

A double number line is a visual representation that shows two related quantities along two parallel lines, helping to compare ratios and rates.

Front

How do you find the total number of items in a ratio?

Back

To find the total number of items in a ratio, add the parts of the ratio together.

Front

What is the simplest form of a ratio?

Back

The simplest form of a ratio is when the numbers are reduced to their smallest whole number values.

Front

Express the ratio 8:12 in simplest form.

Back

The simplest form of 8:12 is 2:3.

Front

What does it mean to compare quantities using a ratio?

Back

To compare quantities using a ratio means to show the relative size of one quantity to another.

Front

If 9 avocados cost $5, how much do 18 avocados cost?

Back

$10.