SOLUTION: Two planes, which are 1570
miles apart, fly toward each other. Their speeds differ by 85mph
mph
. If they pass each other in 2
hours, what is the speed of each?
Algebra ->
Percentage-and-ratio-word-problems
-> SOLUTION: Two planes, which are 1570
miles apart, fly toward each other. Their speeds differ by 85mph
mph
. If they pass each other in 2
hours, what is the speed of each?
Log On
Question 1200787: Two planes, which are 1570
miles apart, fly toward each other. Their speeds differ by 85mph
mph
. If they pass each other in 2
hours, what is the speed of each? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Two planes, which are 1570 miles apart, fly toward each other. Their speeds differ by 85mph.
If they pass each other in 2 hours, what is the speed of each?
---------------
The sum of the speeds is 1570/2 = 785 mi/hr.
----------
a + b = 785
a - b = 85
----------------- Add
2a = 870
etc
