Chapter 5, Day 1 Warm Up

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you simplify a ratio?

Back

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

Front

If the ratio of blue jays to robins is 10:5, how can you express this ratio in simplest form?

Back

The simplest form of the ratio 10:5 is 2:1.

Front

How do you find the number of items in a ratio if you know one quantity?

Back

To find the number of items in a ratio, set up a proportion based on the known quantity and solve for the unknown.

Front

What is the formula to convert a ratio to a fraction?

Back

To convert a ratio a:b to a fraction, write it as a/b.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between numbers, meaning they simplify to the same fraction.

Front

How can you determine if two fractions are equivalent?

Back

Two fractions are equivalent if cross-multiplying gives the same product.

Front

What is the ratio of cats to dogs if there are 6 cats and 16 dogs?

Back

The ratio of cats to dogs is 6:16, which simplifies to 3:8.

Front

What is the first step in solving a word problem involving ratios?

Back

The first step is to identify the quantities involved and their relationships.

Front

How do you express a ratio as a percentage?

Back

To express a ratio as a percentage, divide the first number by the second number and multiply by 100.