<PRE><B>Question 969706</B>
A whole foods grocer makes a natural breakfast cereal by mixing oat granola mix costing $3 per pound with dried almonds costing $8 per pound. How many pounds of dried almonds are needed to make 80 lb of breakfast cereal with a cost of $4.50 per pound?
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let x=amt of oat granola to mix
80-x=amt of dried almonds to mix
3x+8(80-x)=4.50*80
3x+640-8x=360
5x=280
x=56
80-x=24
How many pounds of dried almonds are needed? 24</PRE>