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bạn cho quả đề bài dài quá
tách ra thì sẽ dễ hiểu hơn mà phải giải cả bài hay chỉ đáp án thui thế
Lời giải:
Gọi số thập phân ban đầu là $a$. Khi chuyển dấu phẩy của a sang trái 1 chữ số ta được số bằng 1/10 số $a$.
Khi chuyển dấu phẩy của $a$ sang phải một hàng ta được số gấp 10 lần số $a$.
Ta có:
$a+\frac{1}{10}\times a+10\times a=332,556$
$a+0,1\times a+10\times a=332,556$
$a\times (1+0,1+10)=332,556$
$a\times 11,1=332,556$
$a=332,556:11,1=29,96$
Nhanh lên mấy bạn ơi, 8h mình nộp rồ mà phải trình bày rõ ràng và giải theo cấp 1 nhé!!!!! Bạn nào nhanh mình có mấy cái nick cơ, mình sẽ k thật nhiều cho mấy bạn.
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