Unit 3 Contents

Air Travel

9. One type of large jet airplane can travel at 534 miles per hour. It can carry enough fuel for about eight hours of flight. The airplane uses 3361 gallons of fuel per hour.
1. About how many miles can the airplane travel without refueling?
2. It costs about $7098 an hour to operate the airplane. It takes about 12 hours to fly from Los Angeles to Beijing, China. About how much does the trip cost?
3. It takes about 19 hours to fly from New York to Melbourne, Australia. About how far is it from New York to Melbourne?
4. About how much fuel does the airplane use on the 19-hour flight from New York to Melbourne?
10. A large airline had a total of 85,955,000 passengers one year. If the number of passengers per year stays the same, about how many people will this airline serve in 5 years?
11. Find the value of n that makes each number sentence true.
1. n 40,000 = 200,000
2. 7,400,000,000 n = 1,000,000,000 7 + 400,000,000
3. 225 500 = 10 10,000 + n