The miles he traveled by plane is nine times greater than the miles traveled by automobile. If the total is 600 miles, then the total distance traveled by automobile would be 60 miles, making the total traveled by airplane 540 miles.
The 5 is 12 times greater than the digit 6
divide 60 by 5
Answer=46.43
39 84
___=____
x 100
cross multiply
84x=3900
divide both sides by 84
x=46.43