document.write( "Question 1007645: On a road map of Pennsylvania the distance from Philadelphia to Washington D.C.is 6.8 centimeters. The map scale is 2 cm :40 mi . What Is the actual distance between the cities \n" ); document.write( "
Algebra.Com's Answer #623514 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
We set up a proportion
\n" ); document.write( "\"2+%2F+40+=+6.8+%2F+x\"
\n" ); document.write( "We can cross-multiply and get
\n" ); document.write( "2x = 272
\n" ); document.write( "x = 136 mi
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