document.write( "Question 716721: If 25% of a number is 12.5, what is the original number \n" ); document.write( "
Algebra.Com's Answer #440436 by jndarrell(58)![]() ![]() ![]() You can put this solution on YOUR website! A proportion is great for these.\r \n" ); document.write( "\n" ); document.write( "new number over the original = % over 100\r \n" ); document.write( "\n" ); document.write( "12.5/x=25/100 \n" ); document.write( "Cross multiply \n" ); document.write( "25x=1250 \n" ); document.write( "Divide both sides by 25 to get the x alone \n" ); document.write( "x=50\r \n" ); document.write( "\n" ); document.write( "To check your work, plug the x value into the original equation and work the same steps through.\r \n" ); document.write( "\n" ); document.write( ":) \n" ); document.write( " |