<PRE><B>Question 901876</B>
Two planes, which are 1180 miles apart, fly toward each other. Their speeds differ by 40 mph. If they pass each other in 2 hours, what is the speed of each?
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let x=speed of faster plane
let y=speed of slower plane
distance/travel time=speed
1180/2=590
speed of planes flying toward each other=sum of their indv. speeds
speed of planes flying away from each other=difference of their indv. speeds
x+y=590
x-y=40
add
2x=630
x=315
y=x-40=275
speed of faster plane=315 mph
speed of slower plane=275 mph</PRE>