Question 1159675
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<pre>

Let x be the rate of the cae.


Then the rate of the bus is (x+6) mph.


Your equation is


    {{{300/(x+6)}}} = {{{270/x}}}.


Cross multiply


    300x = 270*(x+6)

    300x = 270x + 270*6

    30x  = 270*6

      x = {{{270*6)/30}}} = 9*6 = 54     <U>ANSWER</U>
</pre>

Solved.