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The legend on a map states that 1 cm is 20 km. If you measure 9 centimeters on the map, how many kilometers would the actual distance be?

Respuesta :

Making a proportion helps solve this problem. Cm on top, km on bottom.


1 9

---- = ----

20 ?


Cross multiply to get 1? = 180


? = 180.


The distance is 180 km.

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