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September 2, 2014

September 2, 2014

Posted by **John** on Thursday, January 27, 2011 at 2:04pm.

- Chemistry -
**DrBob222**, Thursday, January 27, 2011 at 6:35pm50 mg/mL x ?mL = 120 mg

75 mg/mL x ?mL = 10 mg

Solve for mL in each case, then,

add ?mL and ?mL = total mL.

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