SOLUTION: Ivan is on his way home in his car. He has driven 20 miles so far which is four-fifths of the way home. What is the total length of drive?

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Question 998342: Ivan is on his way home in his car. He has driven 20 miles so far which is four-fifths of the way home. What is the total length of drive?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Call the total length of his drive, x.
Thus 4/5 of x is the 20 miles he has driven, or
(4/5)x = 20
Now divide both sides by 4/5 (which is multiplying by 5/4) and get
x = 25 miles