<PRE><B>Question 399251</B>
a car traveled at a steady speed for 130 km. due to a mechanical problem, it returned at half that speed. 
if the total time for the round trip was 4 hours 30 minutes, find the two speeds?
:
Let s = the slower speed
then
2s = the faster speed
;
Write a time equation, time = dist/speed
{{{130/(2s)}}} + {{{130/s}}} = 4.5
find s, by multiplying by 2s, results:
130 + 2(130) = 4.5(2s)
you should be able to solve it now
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