document.write( "Question 52311: Karl determined that the ratio of trucks to cars sold at his car dealership last month was 3 to 7. If a total of 210 trucks and cars were sold last month, how many cars were sold? \n" ); document.write( "
Algebra.Com's Answer #35039 by checkley71(8403)\"\" \"About 
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3/7=X/210-X OR 7X=630-3X OR 10X=630 OR X=63 TRUCKS SOLD & 210-63=147
\n" ); document.write( "PROOF 3/7=63/147 OR 441=441
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