SOLUTION: Two trains leave the same city at a right angle . The first train travels at a speed of 60 km/hour in one hour. The trains are 100 km apart . How fast is the second train travellin
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Question 836242: Two trains leave the same city at a right angle . The first train travels at a speed of 60 km/hour in one hour. The trains are 100 km apart . How fast is the second train travelling?
Thanks so much in advance?
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
60^2 + x^2 = 100^2
3600 + x^2 = 10000
add -3600 to each side
x^2 = 6400
Take square root of each side
x = 80 miles/hour
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