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A new alloy is made by mixing 72 grams of iron with 9 grams of zinc. How many grams of iron are required to make the alloy when combined with 144 grams of zinc?

 Feb 23, 2020
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72 gm Fe / 9 gm Zn   *  144 gm Zn   =

 

72/9    *  144    gm Fe   =      ???        I think you can do it now.....

 Feb 23, 2020

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