Two planes leave simultaneously from the same airport, one flying due north and the other flying due east. The north bound plane is flying 50 miles per hour faster than the east bound plane. After 3 hours the planes are 2,440 miles apart. Find the speed of each plane.
I made a guess at it because I really don't know how to figure out two numbers which add up to a sum, where one number is 50 more than the other and the other is unknown.

Let east bound plane has speed v MPH.
hence speed of north bound plane = v+50
After 3 hours, distances travelled by two planes:
s(N) of north bound plane = (v+50)*3
s(E) of East bound plane = v*3
hence separation between ...

Finding Tension in a String and Speed. 1. Perform ... becomes horizontal. a. Find the tension in the string. b. Find the speed of the bead at B. 18. ...

... that is, they don't "like" changes in speed -- if you ... force must be applied to change their speeds, and that ... it should be fairly obvious that to find the force ...

... the formula the known values to find that F ... gravity (which is what determines the speed) just simplifies ... towards itself, in which case the speeds relative to ...

... Coming up from behind, he grabs his brother and rolls off at a speed of 2.4 m/s. Ignoring friction, find Kevin's speed just before he grabbed his brother. ...

... Also of significance was the finding that the students in integrated settings spent as much time in contact with special education teachers as did those in ...

... you will need to add 21/10 = 2.1 to all speeds. Thus the first speed, 84 km/h, becomes 84 + 2.1 ...Find the control limits and state your inferences from this ...

... The speeds measured were: 57.4 56.1 70.3 65.6 44.2 69.6 ... the point estimate of the population mean speed, using this ... of 12 cars, we would like to find a range ...