SOLUTION: Two planes, which are 2660 miles apart, fly toward each other. Their speeds differ by 65 mph. If they pass each other in 4 hours, what is the speed of each?

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Question 1048674: Two planes, which are 2660 miles apart, fly toward each other. Their speeds differ by 65 mph. If they pass each other in 4 hours, what is the speed of each?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Think of this as one of the planes standing
still and the other one flying at the sum of their speeds
---------------------
Let the speed of the slower DISABLED_event_one= +s+
The speed of the faster DISABLED_event_one= +s+%2B+65+
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+2660+=+%28+s+%2B+s+%2B+65+%29%2A4+
+2660+=+%28+2s+%2B+65+%29%2A4+
+2660+=+8s+%2B+260+
+8s+=+2400+
+s+=+300+
and
+s+%2B+65+=+365+
The speed of the slower plane is 300 mi/hr
The speed of the faster plane is 365 mi/hr
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check answer:
+d%5B1%5D+=+300%2A4+
+d%5B1%5D+=+1200+ mi
and
+d%5B2%5D+=+365%2A4+
+d%5B2%5D+=+1460+ mi
and
+d%5B1%5D+%2B+d%5B2%5D+=+1200+%2B+1460+
+d%5B1%5D+%2B+d%5B2%5D+=+2660+ mi
OK