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2022-07-17 20:36:12
Gọi số tự nhiên liên tiếp là :
Theo đề ta có :
Số tự nhiên thứ :
Số tự nhiên thứ :
Số tự nhiên thứ :
2022-07-12 21:32:07
7,8
2022-07-12 21:07:32
A l P O 4 , phân tử khối bằng : 27 + 31 + 4 X 16 = 122 (đvC).
2022-07-12 21:05:29
x=9
2022-07-12 11:04:32
= 2,073132185
2022-07-12 11:03:31
Bốn tỉ năm trăm bảy ba triệu tám trăm chín hai nghìn ba trăm sáu bảy
2022-07-12 11:01:41
7515 x 305 = 2292075
267 x 2143 = 572181
92157 : 257 = 358,2875486 (Mà lớp 4 học cái này rùi hả ?)
2022-07-10 17:04:28
= 2015x112 -2015x11-2015
=2015x112 -2015x11-2015x1
=2015x(112-11-1)
=2015x100
=201500
2022-07-10 16:59:25
(x-7).35=2.35
(x-7).35=70
x-7=70:35
x-7=2
x=2+7
X=9
Vậy x=9