Mathematics, 11.03.2020 02:37, danizara8

A manufactuer decided to mix two aluminum alloys, one is 20% alloy and the other is 60% alloy. How many tons of 20% alloy should he use to get a total of 100 tons of 28% aluminum alloy?

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A manufactuer decided to mix two aluminum alloys, one is 20% alloy and the other is 60% alloy. How m...