document.write( "Question 932837: Hi, I am not sure how to set the equation up I guess, the answer I keep getting is 1518, answer key says it is wrong. The sales tax on a car that sold for $13,000 is $897. At the same rate, how much higher is the sales tax on a car that sells for $22,000?
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Algebra.Com's Answer #566427 by ptfile(81)![]() ![]() You can put this solution on YOUR website! Let $13,000 = base amount of the first car \n" ); document.write( " $22,000 = base amount of the second car \n" ); document.write( " $897 = Principal amount of the first car \n" ); document.write( " \n" ); document.write( "The sales tax on a car that sold for $13,000 is $897. \n" ); document.write( "Principal = (rate)(base)\r \n" ); document.write( "\n" ); document.write( " 897 = (r)(13,000) \n" ); document.write( " 897/13,000 = r \n" ); document.write( " .069 or 6.9% = r\r \n" ); document.write( "\n" ); document.write( "At the same rate, how much higher is the sales tax on a car that sells for $22,000? \n" ); document.write( "Principal = (rate)(base) \n" ); document.write( " P = (22,000)(.069) \n" ); document.write( " p = 1518\r \n" ); document.write( "\n" ); document.write( "Principal of second car - Principal of first car = difference of sales tax \n" ); document.write( "1518 - 897 = $621\r \n" ); document.write( "\n" ); document.write( "The sales tax on the second car is $621 higher than the first car. \n" ); document.write( " |