Question 945767
{{{D=R*t}}}
{{{t=D/R}}}
Time for mile 1:{{{t[1]=1/8}}}
Time for mile 2:{{{t[2]=1/7.5=4/30}}}
Time for mile 3:{{{t[3]=1/5.5=2/11}}}
So then for the 3 mile distance,
{{{R=D/t}}}
{{{R=3/(1/8+4/30+2/11)}}}
{{{R=3/(165/1320+176/1320+240/1320)}}}
{{{R=3/(581/1320)}}}
{{{highlight(R=3960/581)}}}{{{mph}}}