SOLUTION: A private jet flies the same distance in 13 he's that a commercial jet flies in 9 he's.if the speed of the commercial jet was 110mph less than 2 times the speed of the private jet,
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Question 1042682: A private jet flies the same distance in 13 he's that a commercial jet flies in 9 he's.if the speed of the commercial jet was 110mph less than 2 times the speed of the private jet,find the speed of each j
et
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the speed of the private jet in mi/hr
Let = the speed of the commercial jet in mi/hr
given:
(1)
Let = distance flown by both planes
------------------------------------
(2)
(3)
------------------
From (2) and (3):
-------------------
Plug this last result into (1)
(1)
(1)
(1)
(1)
(1)
and
The speed of the private jet is 198 mi/hr
The speed of the commercial jet is 286 mi/hr
-----------------------
check:
(1)
(1)
(1)
(1)
OK
(2)
(2)
(2)
and
(3)
(3)
(3)
OK
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