SOLUTION: A butcher has some hamburger that is 19% fat and some that is 12% fat. How many pounds of each should be mixed to make 77 lb of hamburger that is 14% fat?
19% fat?
12% fat?
Algebra.Com
Question 522326: A butcher has some hamburger that is 19% fat and some that is 12% fat. How many pounds of each should be mixed to make 77 lb of hamburger that is 14% fat?
19% fat?
12% fat?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the number of lbs of 19% fat hamburger. Then 
must be the number of lbs of 12% fat hamburger if the two amounts must total 77 lbs. 
is the amount of fat in the 19% fat hamburger and )
is the amount of fat in the 12% fat hamburger, and )
is then amount of fat in the mixture.
Since the sum must equal the total:
\ =\ 0.14(77))
Solve for . Then calculate
John
My calculator said it, I believe it, that settles it
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