Question 68967
1600+13m=2100+7m
13m-7m=2100-1600
6m=500
m=500/6
m=83.33 miles.
This says the the two fees are the same asfter 83.33 miles.
proof
1600+13*83.33=2100+7*83.33
1600+1083.33=2100+583.33
2683.33=2683.33