Posted by chris on Sunday, January 24, 2010 at 1:58pm.
find the worlds production of nickel in a year when russia and new caledonia together produced 1/3 of it,canada 1/6 of it,and australia 1/9 of it, and the rest of the world 420,000 tons.
Let x = world production
1/3 x + 1/6 x +1/9 x = x - 420,000
Solve for x.
I hope this helps.
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