document.write( "Question 130391: I have a world problem, not sure if I came up with the right answer. Could I have some help on this, thanks. The good seed flower shop sells its own brand of fertilizer. It mixes one brand of fertilizer that contains 7% nitrogen with another that contains 8% nitrogen. The resulting mixture contains 7.7% nitrogen. How many pounds of the 8% fertilizer must be used to make 200 pounds of the 7.7% mixture? I have 98.6 Could you let me know if it is correct. Thank you, I appreciate the help. \n" ); document.write( "
Algebra.Com's Answer #95259 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! since 7.7 is closer to 8 than to 7, there must be more of the 8% (more than 100lb)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "let x=\"pounds of 8%\", so 200-x=\"pounds of 7%\"\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(8%)(x)+(7%)(200-x)=(7.7%)(200) __ .08x+14-.07x=15.4 __ .01x=1.4 \n" ); document.write( " |