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OpenStudy (anonymous):
The scale on a map is 4cm : 9km. If the distance between two cities is 72km, how far apart in cm are the two cities on the map?
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OpenStudy (nikato):
Welcome to openstudy!
OpenStudy (nikato):
And to solve this problem, you would have to set up a proportion 4. x -- = ---- 9. 72
OpenStudy (nikato):
Cross multiply and solve for x
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