Question

state the fraction of gold present in an 18 carat gold piece​

Answer 1

Explanation:

24carat => 1

18carat=> x

x= 18/24

x= 3/4 or0.75

Answer 2

Answer:

As we know that gold is a malleable metal hence it is very easy to mold and is very soft. Initially when the use of gold coins was started it was discovered that it is very easy to form a gold coin. Hence, it was required to harden it up a bit and since then all gold piece consist of some part gold and some part other metal. Usually a 18 carat gold piece consists of 75% of gold.

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