A plane is 400 miles west of city A and is flying west at 400 miles per hour. How long will it take for the plane to be 1940 miles west of city A?
well, how far does it have to go?
time = distance/speed, so ...
4.85hours
Mya gave the time for the whole 1940 miles. But the plane has already gone 400.
To find out how long it will take for the plane to be 1940 miles west of city A, we need to determine the distance the plane needs to cover and divide it by the speed at which it is flying.
The plane is currently 400 miles west of city A and is flying west at a speed of 400 miles per hour. This means that it is moving at a rate of 400 miles per hour in the westward direction.
Let's denote the time taken for the plane to reach 1940 miles west of city A as "t" (in hours).
The distance the plane needs to cover is the difference between its current position and the desired position, which is 1940 - 400 = 1540 miles.
Now, we can set up the following equation to solve for "t":
Distance = Speed × Time
1540 miles = 400 miles per hour × t
To calculate the time, we divide both sides of the equation by 400 miles per hour:
t = 1540 miles / 400 miles per hour
Now, we can simplify this expression:
t = 3.85 hours
Therefore, it will take approximately 3.85 hours for the plane to be 1940 miles west of city A.