A metal alloy consists of aluminum, copper and tin mixed into a ratio of 7:5:3. How much of each metal is there in 450 g of the alloy?

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Answer 1 · 2017-04-24T10:37:43

210 grams aluminum, 150 grams copper and 90 grams tin

If you have one unit of alloy, #7/15# of it is aluminum, #5/15# of it is copper, and #3/15# of it is tin. Since #7+5+3=15#

Now compute the compartments in 450 grams alloy:

For aluminum: #(7/15)450=210# grams aluminum.

For copper: #(5/15)450=150# grams copper.

For tin: #(3/15)450=90# grams tin.