SOLUTION: A mixture of 24 pounds of nails selling for $2.50 per pound contains five times as many nails selling at $2.40 a pound as nails selling at $3.00 a pound. How many pounds of nails a
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Question 463983: A mixture of 24 pounds of nails selling for $2.50 per pound contains five times as many nails selling at $2.40 a pound as nails selling at $3.00 a pound. How many pounds of nails at $3.00 per pound are in the mixture?
Solution Manuel: 4 pound at $3.00/per pound. (I do not know how they got to the answer) Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! 24x2.50=60
m+n=24
2.4m+3n=60
24m+30n=600
24m+24n=576
6n=24
n=4
m=20
You need 20 lbs of nails at $2.40 and 4 lbs. of nails at $3.00..
