document.write( "Question 626395: In a test of 30 questions, 20 points are given for each correct answer and 5 points are deducted for each one answered wrong. If Maria answered all of the questions and got a score of 325, how many did she get right?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #394146 by nerdybill(7384) You can put this solution on YOUR website! In a test of 30 questions, 20 points are given for each correct answer and 5 points are deducted for each one answered wrong. If Maria answered all of the questions and got a score of 325, how many did she get right? \n" ); document.write( ". \n" ); document.write( "Let x = number she got right \n" ); document.write( "then \n" ); document.write( "30-x = number she got wrong \n" ); document.write( ". \n" ); document.write( "20x - 5(30-x) = 325 \n" ); document.write( "20x - 150+5x = 325 \n" ); document.write( "25x - 150 = 325 \n" ); document.write( "25x = 475 \n" ); document.write( "x = 19 \n" ); document.write( " \n" ); document.write( " |