Mathematics, 28.06.2019 00:10 christheicebear

The costs of brand a and brand b coffee beans are $400/kg and$280/ke respectively. x kg of brand a coffee beans and y kg ofbrand b coffee beans are mixed so that the cost of the mixture is$320/kg. find the ratio of x: y

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The costs of brand a and brand b coffee beans are $400/kg and$280/ke respectively. x kg of brand a c...