RATIO TABLES

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 ratio table?

Back

A ratio table is a table that displays pairs of numbers that form equivalent ratios.

Front

How do you find a missing value in a ratio table?

Back

To find a missing value, use the relationship between the known values to set up a proportion and solve for the unknown.

Front

If the ratio of A to B is 2:3, what is the value of B if A = 4?

Back

B = 6, because if A = 4, then B = (3/2) * 4 = 6.

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 simplify to the same fraction.

Front

Complete the ratio table: 1:2, 2:4, __:6.

Back

3:6, because the ratio is consistent.

Front

If a table shows the cost of 3 apps is $9, how much would 7 apps cost?

Back

$21, because the cost per app is $3.

Front

What is the formula to find a missing value in a ratio?

Back

If a:b = c:x, then x = (b*c)/a.

Front

If the ratio of cats to dogs is 3:5 and there are 15 cats, how many dogs are there?

Back

25 dogs, because (5/3) * 15 = 25.

Front

What is a proportion?

Back

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