SOLUTION: holly 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? I n

Question 591436: holly 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? I need to answer this using two variables x and Y.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = km traveled by bus
= km traveled by plane
Let = time spent on bus
= time spent on plane
----------------------------
Equation for bus:
(1)
Equation for plane:
(2)
--------------------------
(2)
(2)
(2)
(2)
Substitute (1) into (2)
(2)
(2)
(2)
-------------
(1)
(1)
and

Holly traveled 150 km by bus and 1750 km by plane
check:
(2)
(2)
(2)
(2)
OK
(1)
(1)
(1)
OK
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