The table shows the number of accidents, fatalities, hours and miles flew for U.S. airlines. Year Accidents Fatalities Hours flown Miles flown 2000 59 98 16.7 million 7.1 billions 2005 36 28 18.7 7.8 2010 29 0 17.2 7.3 2015 25 0 17.4 7.6 a. Compute the accident rate per million hours flown in 2000 and 2015. By this measure, has travel on U.S. airlines become safer? b. Compute the accident rate per billion miles flown in 2000 and 2015. By this measure, has travel on U.S. airlines become safer?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
The table shows the number of accidents, fatalities, hours and miles flew for U.S. airlines.
|
Year |
Accidents |
Fatalities |
Hours flown |
Miles flown |
|
2000 |
59 |
98 |
16.7 million |
7.1 billions |
|
2005 |
36 |
28 |
18.7 |
7.8 |
|
2010 |
29 |
0 |
17.2 |
7.3 |
|
2015 |
25 |
0 |
17.4 |
7.6 |
a. Compute the accident rate per million hours flown in 2000 and 2015. By this measure, has travel on U.S. airlines become safer?
b. Compute the accident rate per billion miles flown in 2000 and 2015. By this measure, has travel on U.S. airlines become safer?
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
