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0
2022-04-29 21:21:24
2022-04-29 21:11:23
Gọi số thứ 1 là :x
Thì số thứ 2 là:x-70
TĐB ta có:
\(\dfrac{x+x-70}{2}=125=>\dfrac{2x-70}{2}=50=>2x-70=250=>2x=320=>x=160\)
Vậy số thứ 1 là:160
số thứ 2 là 160-70=90
2022-04-29 21:06:44
2022-04-29 21:05:26
Đáp án:
C và D
vì 1,2<1,4<2,3 mà 1,2<2<2,3
2022-04-29 21:03:25
8,64:(1,46+3,34)+6,32
=8,64:4,8+6,32
=1,8+6,32
=8,12
2022-04-29 21:00:59
2022-04-29 20:58:19
2022-02-12 08:45:19
2022-02-12 08:45:17