document.write( "Question 1006403: Mark had 14 problems wrong on his test. His score was 72% correct. How many problems were on the test? \n" ); document.write( "
Algebra.Com's Answer #622529 by Theo(13342)![]() ![]() You can put this solution on YOUR website! 100% - 72% correct = 28% wrong.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "14 wrong is equal to 28%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x is the number of problem on the test.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( ".28 * x = 14\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "divide both sides of this equation by .28 to get x = 14/.28 = 50\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "there are 50 problems on the test.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "14 / 50 = .28 * 100 = 28%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "100% - 28% = 72%\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "28% wrong \n" ); document.write( "72% right\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |