SOLUTION: If a scale of a map is 1/3 inch equals one mile, how long is a straight road that is one and one-half inches on the map?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: If a scale of a map is 1/3 inch equals one mile, how long is a straight road that is one and one-half inches on the map?      Log On


   

Question 259823: If a scale of a map is 1/3 inch equals one mile, how long is a straight road that is one and one-half inches on the map?
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
create a proportion like this:
{{(1/3)/1 = (3/2) / x}}}
cross multiply to get
%281%2F3%29x+=+%283%2F2%29
multiply by 3 to get
x+=+9%2F2
So, we have 4.5 miles