Question 1154641
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Let x be the slower speed, in miles per hour.

Then the faster speed is (x+10) mph.


The "time" equation is 


    {{{60/x}}} + {{{60/(x+10)}}} = {{{3}}}{{{1/2}}}   hours.


To solve it, multiply both sides by 2x*(x+10).


Then reduce to the standard form quadratic equation and solve it by any way you want/you like.


<U>ANSWER</U>.  The speeds are 40 mph and 30 mph.    (You may solve it MENTALLY (!) )
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