Question 823479
In general brass is made of two parts of copper to one part zinc. How many pounds of zinc are needes to produce 45 pounds of brass.
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Note: one to two is the same as x to 2x where x is amt. of zinc; 2x is
amt of copper.
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Equation:
x + 2x = 45
3x = 45
x = 15 (amt. of zinc needed)
2x = 30 (amt. of copper needed)
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Cheers,
Stan H.