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23 August, 08:03

When 70 % of a number is added to the number, the result is 221. What is the number?

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  1. 23 August, 08:26
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    Answer: 130

    Step-by-step explanation:

    so 0.7x + x = 221

    so 1.7x = 221

    divide both sides by 1.7 to get

    x = 130
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