Homework Help: algebra

Posted by kit on Thursday, January 24, 2008 at 9:32pm.

If Olivia drove x km at 60 km/h and then twice as far at 80 km/h. In terms of x, how many hours did the trip take? Give the answer in simplest terms

algebra - Reiny, Thursday, January 24, 2008 at 10:24pm
the time for the first trip was x/60 hrs
the time for the second trip was 2x/80

so the total time was x/60 + 2x/80
=10x/240
= x/24 hours

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