document.write( "Question 900782: How many ounces of pure gold that costs $850 per ounce must be mixed with 25 ounces of a gold alloy that costs $500 per ounce to make a new alloy that costs $725 per ounce? \n" ); document.write( "
Algebra.Com's Answer #546142 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 850*x+500*25=725(25+x) \n" ); document.write( "850*x+12500=18125+725x \n" ); document.write( "850x-725x=18125-12500 \n" ); document.write( "125x=5625 \n" ); document.write( "x=45 ounces \n" ); document.write( "check \n" ); document.write( "850*45+500*25=725(25+45) \n" ); document.write( "38250+12500=725(70) \n" ); document.write( "50750=50750 \n" ); document.write( "ok\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |