Question 475299
total distance = 68
running distance =x
running speed = 8 mph
walking distance = 68-x
walking speed = 4 mph

time running + time walking = 12

t=d/r
x/8 + (68-x)/4= 12

LCD = 8 multiply by 8
x+2(68-x)=8*12
x+136-2x=96
-x=96-136
-x=-40
x=40
distance run = 40 miles

Balance he walked
m.ananth@hotmail.ca