Score: 0 of 1 pt 3 of 14 (2 com 1.5.3 When a number is decreased by 30% of itself, the result is 21. What is the number?

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Score: 0 of 1 pt
3 of 14 (2 com
1.5.3
When a number is decreased by 30% of itself, the result is 21. What is the number?
The number is

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Adela 1 year 2021-08-24T01:11:30+00:00 1 Answers 4 views 0

Answers ( )

    0
    2021-08-24T01:12:38+00:00

    Answer:

    70

    Step-by-step explanation:

    21/.3

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )