SOLUTION: the actual distance between cities is proportional to their measured distance on a map. the measured distance between two cities 75 miles apart is 3 inches on a map write an equati

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Question 1048608: the actual distance between cities is proportional to their measured distance on a map. the measured distance between two cities 75 miles apart is 3 inches on a map write an equation in the form of y=ax that can be used to find the actual distance to any two cities measured on a map
Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
the actual distance between cities is proportional to their measured distance on a map. the measured distance between two cities 75 miles apart is 3 inches on a map write an equation in the form of y=ax that can be used to find the actual distance to any two cities measured on a map
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3inches = 75 miles
1 inch = 25 miles
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d(x) = 25*x where x is the measure in inches on the map.
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Cheers,
Stan H.
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Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


must be a number of miles, and must be a number of inches, so must be a number of miles per inch.

We want , but need to know the value of .

We are given when , so we know that



Solve for

John

My calculator said it, I believe it, that settles it