Problema Solution
how many kilograms of cookies worth of $0.80 per kilogram must be mixed with 10 kilograms of cookies worth $1 per kilogram to get the mixture worth $0.88 per kilogram?
Answer provided by our tutors
Let
x = kgs of cookies worth of $0.80 per kilogram
0.80x + 1*10 = 0.88(x + 10)
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........
x = 15 kg
15 kg of cookies worth of $0.80 per kilogram must be used in the mix.