SOLUTION: on a certain map,3/8 of an inch represents 120 miles.how many miles does 1 3/4 inches represents?

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Question 870130: on a certain map,3/8 of an inch represents 120 miles.how many miles does 1 3/4 inches represents?
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
since 1 and 3/4 is the same as 7/4, then:

your ratio is 120 / (3/8) = x / (7/4)

cross multiply to get 120 * (7/4) = (3/8) * x

simplify to get:

210 = (3/8) * x

multiply both sides by (8/3) to get:

210 * (8/3) = x

simplify to get:

x = 560.