Sandra saves 10% of her salary for retirement. This year her salary was $2,000 more than in the previous
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So,
To find the percentage that the copper comprises, just divide the amount of copper by the total amount of metal in the coin. In this case, we will change the denominator so that it is 100, which can easily be converted into a percentage, which is really just a fraction out of 100.
75%
75% of the metal in the coin is copper.
To find the percentage that the copper comprises, just divide the amount of copper by the total amount of metal in the coin. In this case, we will change the denominator so that it is 100, which can easily be converted into a percentage, which is really just a fraction out of 100.
75%
75% of the metal in the coin is copper.