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11-10-2021
Mathematics

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Aluminum bronze consists of copper and aluminum, usually in the ratio of 10:1 by weight. If an object made of this alloy weighs 77 pounds, how many pounds of aluminum does it contain?

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abzda1208 abzda1208

11-10-2021

1 mark for 10:1 mean 10 parts copper 1 part aluminium

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