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có 9 can như thế thì đựng được số lít dầu là :
64 : 8 x 9 = 72 (lít)
Đ/s:..
8 thùng như thế xếp được số quyển là:
1260 x 8 : 6 = 1680 (quyển)
Đ/s:..
k mình nha
C nha
Trạng ngữ: Hết mùa thu
Chủ ngữ: chim chóc
Vị ngữ: cũng vãn
a, Độ dài CB là:
8 - 2 = 6 (cm)
b, Độ dài CM và AM là:
6 : 2 = 3 (cm)
Vậy..
k mình nha
17% của 340 là:
340 x 17% = 340 x 17/100 =57,8
y x 1,5 = 6,7 + 3,05
y x 1,5 = 9,75
y = 9,75 : 15
y = 0,65
k chắc đâu
S xung quanh căn phòng là: (8+6)x4.2=112(m2)
S trần nhà là: 8x6=48(m2)
S cửa ra vào là: 1x2,2=2,2(m2)
S 4 cửa sổ là: (0,8x0,8)x4=2,56(m2)
S quét vôi là: (112+48)-(2,2+2,56)=155,24(m2)
Đ/s:...
sai sai nên mình k chắc đâu nhé