Question 1140236
total time:
{{{48/36+48/v}}}


total distance:
{{{96}}} {{{miles}}}


EQUATION
{{{96/(48/36+48/v)=45}}}-----solve for v.

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{{{2/(1/36+1/v)=45}}}

{{{2/((v+36)/36v)=45}}}

{{{(2*36v)/(v+36)=45}}}

{{{(2*12v)/(v+36)=15}}}

{{{(2*4v)/(v+36)=5}}}

{{{8v=5(v+36)}}}

{{{8v=5v+5*36}}}

{{{3v=5*3*12}}}

{{{v=60}}}