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 #95257 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! .08X+.07(200-X)=.077*200 \n" ); document.write( ".08X+14-.07X=15.4 \n" ); document.write( ".01X=15.4-14 \n" ); document.write( ".01X=1.4 \n" ); document.write( "X=1.4/.01 \n" ); document.write( "X=140 POUNDS OF 8% FERTILIZER IS NEEDED. \n" ); document.write( "200-140=60 POUNDS OF 7% IS NEEDED. \n" ); document.write( "PROOF: \n" ); document.write( ".08*140+.07*60=.077*200 \n" ); document.write( "11.2+4.2=15.4 \n" ); document.write( "15.4=15.4 \n" ); document.write( " |