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15 November, 10:47

A U. S. nickel has a mass of 5.00 grams. A U. S. penny has a mass of 2.50 grams. What is the mass in kilograms of the coins in a bag containing 186 nickels and 72 pennies?

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  1. 15 November, 14:44
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    186 nickels x 5 grams = 930 grams

    72 pennies x 2.50 grams = 180 grams

    930 + 180 = 1,110

    1 kilogram and 110 grams
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