Intro to Math M3 L1 and L2 review

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

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 2:3), as a fraction (e.g., 2/3), or with the word 'to' (e.g., 2 to 3).

Front

What is the ratio of school apps to game apps if Kelly has 5 school apps and 3 game apps?

Back

The ratio of school apps to game apps is 5 to 3.

Front

What should you do if your paycheck is incorrect?

Back

You should speak politely to your manager that your check was incorrect.

Front

What is a proportion?

Back

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

Front

Do the ratios 2:3 and 4:6 form a proportion?

Back

Yes, they form a proportion because 2/3 = 4/6.

Front

How do you find a missing value in a proportion?

Back

You can use cross-multiplication to find the missing value in a proportion.

Front

If 2 is to 10 as ? is to 20, what is the missing value?

Back

The missing value is 4.

Front

What is the ratio of dogs to all pets if there are 2 dogs, 4 cats, and 5 hamsters?

Back

The ratio of dogs to all pets is 2:11.

Front

What is the first step in solving a ratio problem?

Back

Identify the quantities being compared and write them as a ratio.