Chapter 4 Review

Front

What is a map scale?

Back

A map scale is a ratio that compares a distance on the map to the actual distance on the ground.

Front

If 1 inch on a map represents 42 miles, how far apart are two cities that are 5 inches apart on the map?

Back

210 miles (5 inches x 42 miles/inch = 210 miles).

Front

How do you calculate words typed per minute?

Back

Divide the total number of words by the number of minutes. For example, 408 words in 4 minutes equals 102 words per minute.

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

What is the ratio of pears to all fruit if there are 4 apples, 2 bananas, and 5 pears?

Back

5:11 (5 pears out of a total of 11 fruits).

Front

How do you find the total number of customers a cashier can serve in a given time?

Back

Use the rate of service (customers per minute) and multiply it by the total time in minutes.

Front

If a cashier serves 2 customers in 8 minutes, how many customers can he serve in 30 minutes?

Back

7.5 customers (Rate: 0.25 customers/minute; 30 minutes x 0.25 = 7.5).

Front

What is the ratio of books not read to all books if you have 29 books and have read 18?

Back

11:29 (11 books not read out of 29 total books).

Front

How do you convert a ratio to a fraction?

Back

A ratio of a:b can be expressed as the fraction a/(a+b).

Front

What is the importance of understanding scales on maps?

Back

Understanding scales helps in accurately interpreting distances and navigating effectively.