Answer:
The speed of the plane with no wind is 378 miles per hour.
Step-by-step explanation:
Since at maximum speed, an airplane travels 1680 miles against the wind in 5 hours, and flying with the wind. the plane can travel the same distance in 4 hours, to determine what is the speed of the plane with no wind, the following calculation must be performed:
Against the wind = 1680/5 = 336
With the wind = 1680/4 = 420
420 - ((420 - 336) / 2) = X
420 - 42 = X
378 = X
Therefore, the speed of the plane with no wind is 378 miles per hour.
Angle B = 180 - (45+15) = 120
This is because all the angles in a triangle add up to 180 degrees.
I hope this is what you wanted or asked <span>45702.086</span>
3 less than a number is an expression.
Answer:
Triangular prism
Step-by-step explanation:
