document.write( "Question 858137: Mr Brown gave a test with 30 questions worth 100 points. If some of the questions were worth three points and the rest were worth 5 points, How many questions of each value did he have? \n" ); document.write( "
Algebra.Com's Answer #517044 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Mr Brown gave a test with 30 questions worth 100 points. If some of the questions were worth three points and the rest were worth 5 points, How many questions of each value did he have? \n" ); document.write( "*** \n" ); document.write( "let x=number of 5-point questions \n" ); document.write( "30-x=number of 3-point questions \n" ); document.write( ".. \n" ); document.write( "5x+3(30-x)=100 \n" ); document.write( "5x+90-3x=100 \n" ); document.write( "2x=10 \n" ); document.write( "x=5 \n" ); document.write( "30-x=25 \n" ); document.write( "number of 5-point questions=5 \n" ); document.write( "number of 3-point questions=25 \n" ); document.write( " |