Mathematics
Mathematics, 15.01.2020 15:31, EricaLSH7624

In a laboratory a pharmacist has 30% and 80% alcohol solutions. she needs 100ml of a 50% alcohol solution. how many milliliters of the 30% and 80% solutions should she mix?

this is from a homework i dont really understand would you mind showing your work

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In a laboratory a pharmacist has 30% and 80% alcohol solutions. she needs 100ml of a 50% alcohol sol...

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