document.write( "Question 936802: raul scored 72% on a test and got 7 problems wrong. how many problems were on the test? \n" ); document.write( "
Algebra.Com's Answer #570312 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! raul scored 72% on a test and got 7 problems wrong. how many problems were on the test? \n" ); document.write( "*** \n" ); document.write( "let x=number of problems on the test \n" ); document.write( "x-7=number of problems raul got right \n" ); document.write( "(x-7)/x=72% \n" ); document.write( "x-7=.72x \n" ); document.write( "x-.72x=7 \n" ); document.write( ".28x=7 \n" ); document.write( "x=7/.28=25 \n" ); document.write( "how many problems were on the test? 25 \n" ); document.write( " |