document.write( "Question 252741: No matter how much I look at this one , I can't see what they are up to . I'm not getting what the ....=.....=.... is trying to do for an algebraic solution.
\n" );
document.write( "The problem: Mary is reviewing her algebra quiz. She has determined that one of her solutions is incorrect. Which one is it?
\n" );
document.write( "A. 2x+5(x-1)=9x=2
\n" );
document.write( "B. p-3(p-5)=10p=2.5
\n" );
document.write( "C. 4y+3y=28y=4
\n" );
document.write( "D. 5w+6w-3w=64w=8
\n" );
document.write( "E. t-2t-3t=32t=8
\n" );
document.write( "Again, thanks in advance. Daniel \n" );
document.write( "
Algebra.Com's Answer #184853 by MathTherapy(10552)![]() ![]() You can put this solution on YOUR website! A. 2x+5(x-1)=9 ; x = 2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x + 5x - 5 = 9 \n" ); document.write( "7x = 14 \n" ); document.write( "x = 14/7 = 2 ------ CORRECT\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "----------------------------------------------- \n" ); document.write( "B. p-3(p-5)=10 ; p = 2.5 \n" ); document.write( "p - 3p + 15 = 10 \n" ); document.write( "- 2p = - 5 \n" ); document.write( "p = 2.5 ------ CORRECT\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "----------------------------------------------- \n" ); document.write( "C. 4y+3y=28 ; y = 4 \n" ); document.write( "7y = 28 \n" ); document.write( "y = 28/7 \n" ); document.write( "y = 4 ------- CORRECT\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "----------------------------------------------- \n" ); document.write( "D. 5w+6w-3w=64 ; w = 8 \n" ); document.write( "8w = 64 \n" ); document.write( "w = 64/8 \n" ); document.write( "w = 8 ------- CORRECT\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------------------------ \n" ); document.write( "E. t-2t-3t=32 ; t = 8 \n" ); document.write( "- 4t = 32 \n" ); document.write( "t = 32/-4 \n" ); document.write( "t = - 8, not 8 ------ INCORRECT \n" ); document.write( " |