document.write( "Question 807915: the scale of a map is 1:20000.Find the actual distance (in km) if the measurement on the map is 4cm \n" ); document.write( "

Algebra.Com's Answer #486610 by josmiceli(19441) $\"\"$ $\"About$

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Set up the ratio:
\n" ); document.write( " $\"+1+%2F+20000+=+4+%2F+x+\"$ cm/km
\n" ); document.write( "Multiply both sides by $\"+20000x+\"$
\n" ); document.write( " $\"+x+=+80000+\"$ cm
\n" ); document.write( " $\"+x+=+800+\"$ m
\n" ); document.write( " $\"+x+=+.8+\"$ km
\n" ); document.write( " \n" ); document.write( "

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