Mathematics
Mathematics, 03.07.2020 22:01, Ksedro1998

8. A goldsmith has 130 grams of a gold alloy (a mixture of gold and one or more other metals) containing 85% pure gold. How much pure gold must be added to this alloy to obtain an alloy that is 90% pure gold?
The amount of pure gold that should be added is
grams.
(Type an integer or a decimal.)

answer
Answers: 3

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8. A goldsmith has 130 grams of a gold alloy (a mixture of gold and one or more other metals) contai...

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