Question 122184
Let Jogging hours = x
Walking hours = 10-x
Jogging distance = speeedxtime=8x
Walking distance=4(10-x)
Total distance=8x+4(10-x)=56
8x+4(10-x)=56
8x+40-4x=56
8x-4x=56-40
4x=16
x=4
Jog hours =4
Walk hours =6

Verify

Jog dist =4*8=32
Walk dist =6*4=24
Total = 56 miles 
okay
good day