math
posted by mo .
A grocer mixes a premium blend of coffee worth $17/kg with a coffee blend worth #7/kg. A mixture of 36 kg worth $11/kg is produced. How many kilograms of each type of coffee are included in the mixture?

amount of premium coffee  x
amount of cheaper coffee  36x
17x + 7(36x) = 11(36)
solve for x
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