2. Example 1: Guess, Check, and Revise
Main Idea
Example 1: Guess, Check, and Revise
Lesson Menu

3. Guess, check, and revise to solve problems.
Main Idea/Vocabulary

4. Guess, Check, and Revise
There are 58 passengers on an airline flight to Orlando. Passengers with first-class tickets paid $808 for their seats. Passengers with coach tickets paid $208 for their seats. The total amount of tickets paid for this flight was $15,664. How many tickets of each type were sold?
Understand There are 58 passengers on the airline. The first-class tickets cost $808 and the coach tickets cost $208.
Plan Make a guess and check to see if it is correct. If it is not, then revise.
Example 1

5. Answer: So, 6 first-class tickets and 52 coach tickets were sold.
Guess, Check, and Revise
Solve Find the combination that gives a total of $15,664. In the list, f is the number of first-class tickets and c is the number of coach tickets sold.
Answer: So, 6 first-class tickets and 52 coach tickets were sold.
Check = 58 and 808(6) + 208(52) = 15,664; the guess is correct. 
Example 1

6. Javier downloaded a total of 12 songs and TV shows. The songs cost $0
Javier downloaded a total of 12 songs and TV shows. The songs cost $0.99 each and the TV shows cost $2.99 each. He paid a total of $ How many songs and how many TV shows did he download?
A. 3 songs and 9 TV shows
B. 6 songs and 6 TV shows
C. 9 songs and 3 TV shows
D. 10 songs and 2 TV shows
Example 1 CYP