Sarah wants to mix 400 liters of a solution that is 57.5 iodine. She has two solutions available. One is 20% iodine and the other is 70% iodine. How many liters of both should Sarah use?(adsbygoogle = window.adsbygoogle || []).push({});

Answer in the form: 20% = ?, 70% = ?

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# Homework Help: Concentration problems

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