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well let's write what we do know.
s=ounces of silver
t= ounces of turquoise
Ounces of silver =290 per ounce or in other words 290s
ounces of turquoise= 24 per ounce or in other words 24t
Since you have to pay for the ounces of silver, we know that
you have to subtract 290s
Same logic applies for the ounces of turquoise
But, you make 600 per ounce sold. So, you would need to add (s+t)x600.
So your complete formula for P is as follows
To show you how my formula works, lets use the example that I sold 1 ounce of silver and 1 ounce of turquoise.
well I sold two ounces (1+1)=2
Thus the profit would be 886.
Let me know if you want more details
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