SOLUTION: Richard took a 1900km trip traveling by bus and plane. The bus averaged 60km/h and the plane averaged 700 km/h if the trip took a total of 5 h how many kilometers did she travel
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Question 1045761: Richard took a 1900km trip traveling by bus and plane. The bus averaged 60km/h and the plane averaged 700 km/h if the trip took a total of 5 h how many kilometers did she travel
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the distance traveled by bus in km
= the distance traveled by plane
Let = time in hrs spent traveling by bus
= time in hrs spent traveling by plane
----------------------------------------
Equation for bus:
(1)
Equation for plane:
(2)
----------------------------
(1)
Plug this result into (2)
(2)
(2)
(2)
(2)
(2)
and
-----------------------
She traveled 150 km by bus and 1750 km by plane
-------------
check:
(1)
(1)
(1) hrs by bus
------------------------
(2)
(2)
(2)
(2) by plane
hrs total
OK
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