SOLUTION: A cargo plane flew from the US across the Atlantic at 207 miles per hour, and flew back to the US at 227 miles per hour. Given that the first trip took two hours longer, how long w

Question 826313: A cargo plane flew from the US across the Atlantic at 207 miles per hour, and flew back to the US at 227 miles per hour. Given that the first trip took two hours longer, how long was the return trip?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
---
s = d/t
d = s*t
---
x = time of return trip
---
out:
d = s*t
d = 207(x + 2)
---
return:
d = s*t
d = 227x
---
207(x + 2) = 227x
207x + 414 = 227x
20x = 414
x = 414/20
x = 20.699999999999999
---
answer:
the return trip was 20.7 hours, or 20 hours and 42 minutes
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