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Achemist mixes 4 liters of one acid solution with 10 liters of a 40% solution, resulting in a 30% acid solution. what is the value of x, the acid concentration of the first solution
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—en la mañana, ella 1. el cereal y tú 2. el jugo de naranja. —yo 3. la limonada. 1. quiero 2. quiero 3. prefiere 1. quiere 2. quieres 3. prefiero 1. quiero 2. quiere 3. prefieres 1. quiere 2. quiere 3. prefiero
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