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31 January, 18:17

Gomes found the masses of three rocks for a science project. The first rock had a mass of 19.29 grams, the second rock had a mass of 25.3 grams, and the third rock had a mass of 46.3 grams. How much greater was the mass of the third rock than the combined mass of the other two rocks?

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  1. 31 January, 18:42
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    Mass of first rock is 19.29

    Mass of second rock is 25.3

    Mass of third rock is 46.3

    Add up the mass of the first and second rock.

    19.29 + 25.3 = 44.59

    Now, we need to know how much greater the mass of the third rock is than the combined mass of the other two rocks. That means subtraction.

    46.3 - 44.59 = 1.71

    Your answer is 1.71.
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