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
Algebra ->
Trigonometry-basics
-> 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
Log On
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