another word problem need help

G

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Guest
one grade of mixed nuts costs $8.50/kg while the second grade costs $6.00/kg. How much of each grade should be used to produce 80kg of a mixture costing 7.00/kg?


any help would be nice thanks
 
The High price is 8.50/kg
The Low price is 6.00/kg
H+L=80 (to get 80 kg)
8.5H+6L=7(H+L) (to get $7/kg of mix)
 
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