pharmacy calculation

[yahksah]

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stuck on this.... please show work. thanks!!

How many grams of drug X should be added to 5,000 g of 12% drug X ointment to prepare a 32% drug X ointment?

 

[owlegrad]

stuck on this.... please show work. thanks!!

How many grams of drug X should be added to 5,000 g of 12% drug X ointment to prepare a 32% drug X ointment?

Do you know how to setup a proportion?

 

[xiphoid2010]

stuck on this.... please show work. thanks!!

How many grams of drug X should be added to 5,000 g of 12% drug X ointment to prepare a 32% drug X ointment?

Are you serious? Solve for x in a single variable equation is elementary school math.

 

[Dr Wario]

The OP was not asking to be called stupid, he was asking for help. SDN is not the place for homework assistance, but if you would like to PM me I'd be more than happy to guide you through this problem.

 

[owlegrad]

In retrospect my post probably sounded mean. I meant it in a helpful way. If you can setup a proportion you can solve this problem. It was meant as a hint as to how I would solve it.

 

[RxMTM]

 

[Bkobe7]

x = grams of drug X
12% of 5,000 g = 600 g

(x + 600 g) / (x + 5,000 g) = 32% = 0.32
x + 600 = 0.32x + 1600
0.68x = 1000
x = 1470.59

Sorry, just practicing for NAPLEX...1 more week Fu#$%@#!!

 

[delano2000]

SDN is not the place for homework help (or for similar questions such as this). Thread closed.