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17 September, 01:58

One number is 5 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 555 , find the numbers ...

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  1. 17 September, 02:18
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    first = 65

    second = 325

    Third = 165

    Step-by-step explanation:

    Let the first number = x

    first: x

    second: 5x

    Third = x + 100

    first + second + third = 555

    x + 5x + x + 100 = 555 Combine

    7x + 100 = 555 Subtract 100 from both sides

    7x + 100 - 100 = 555 - 100

    7x = 455 Divide by 7

    7x/7 = 455/7

    x = 65
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