Question 1114407
RT=D Constant Travel Rate for Distance


r, speed, miles per hour, while in the storm

<pre>
             SPEED      TIME          DISTANCE

NO STORM        r+8     45/(r+8)        45

IN STORM        r        60/r           60

Total                   3
</pre>
Continue with the equation summing the two time quantities,

{{{45/(r+8)+60/r=3}}}

-

{{{15/(r+8)+20/r=1}}}

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