# math

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if you diluted 145 ml of a 9% benzocaine lotion to 6% how much could you produce

• math -

since 6% is 2/3 of 9%, you can produce 3/2 the volume, or 217.5ml

• math -

You need to prepare 180g of a 10% cream using 30% stock cream base.how much is needed for each

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