Question 298907
freighttrain={{{r}}}:(mph)
passengertrain={{{r+10}}}:(mph)
distance=rate*time, {{{D=RT}}}
passengertrain={{{290miles=(dist/t)+10*t}}}
d=rt;{{{290=R+10*T}}};{{{T=290/R+10}}}
freighttrain={{{240miles=(dist/t)(t)}}}
d=rt;{{{240=R*T}}};{{{T=240/R}}}
{{{290/r+10=240/r}}}
{{{r(r+10)*240/r=r(r+10)*290/r+10}}}
{{{(r+10)*240=290(r)}}}
{{{240r+2,400=290r}}}
{{{240r+2,400-240r=290r-240r}}};{{{2,400=50r}}}
freighttrain={{{r}}}:(mph)
passengertrain={{{r+10}}}:(mph)
{{{R=48}}}
{{{R=48+10}}}
Freighttrain={{{48:(mph)}}}
Passengertrain={{{58:(mph)}}}