<PRE><B>Question 148463</B>
After leaving Moose Jaw, Hanson drove 200km at x km/hr and then decreased his speed by 20km/hr and drove 240 additional kilometers. Make a table expressing these facts. 
:
Let y = total travel time in hrs; Time = {{{dist/speed}}} 
:
An equation of this could be:
y = {{{200/x}}} + {{{240/((x-20))}}}
:
A table from this equation
 x | y
--------
40 |17
50 |12
60 | 9.33
80 | 6.5
100| 5
:
Write a rational expression for x=100.
y = {{{200/100}}} + {{{240/((100-20))}}}
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