2 airplanes with different speeds

2 planes leave an airport at the same time in opposite directions. One plane is slower by 150 mph. After 3 hours they are 2250 miles apart. What are their speeds?
x= plane 1
x-150=plane 2
time= 3 hrs
distance =2250 miles
rate of x=450
[3(x-150)] + 3x=2250

Quote:

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Originally Posted by dymand68

2 planes leave an airport at the same time in opposite directions. One plane is slower by 150 mph. After 3 hours they are 2250 miles apart. What are their speeds?

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let v = speed of the faster plane

(v)(3) + (v-150)(3) = 2250

solve for v