Question 1126100
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You have received one full algebraic solution and the setup for a similar algebraic solution for your problem; here is a method for solving this kind of problem that, if you understand it, will get you to the answer much faster.<br>
(1) $6.00 is three-fifths of the way from $4.50 to $7.00.  (do a little mental arithmetic....)<br>
(2) Therefore, three-fifths of the mixture must be the $7 per pound nuts.<br>
(3) 3/5 of the 9 pounds is 27/5 pounds, or 5.4 pounds.<br>
So 5.4 pounds of the nuts and 9-5.4 = 3.6 pounds of the granola.