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hot girl cua lop 27/04/2017 at 19:15the answer is a
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tin123tin 27/04/2017 at 15:31PHÂN SỐ CHỈ SỐ MẢNH ĐẤT ÔNG JOHNS TRỒNG HOA LÀ ;
1- (1/3+1/4+1/5)=13/60
Tổng diện tích đất của ông Johns là :
13 : 13/60 = 60 ha
Vậy đáp án đúng là A
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Phan Minh Anh 28/04/2017 at 15:52câu A nha bạn, tk cho mình nha
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Trần Bảo Nam 28/07/2019 at 12:38\(18:\dfrac{1}{3}=6\)
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lê đức anh 09/01/2020 at 12:55
18x1/3=6
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Vu Minh Anh 29/10/2019 at 12:10
1/3 của 18 = 18/3=6
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KEITA FC 8C 15/12/2017 at 21:37Considering the left and right sides :
\(1000^2+1003^2+1005^2+1006^2-1001^2-1002^2-1004^2-1007^2\)
\(=\left(1003^2-1002^2\right)+\left(1005^2-1004^2\right)-\left(1007^2-1006^2\right)-\left(1001^2-1000^2\right)\)
\(=\left(1003+1002\right)+\left(1005+1004\right)-\left(1007+1006\right)-\left(1001+1000\right)\)
\(=2005+2009-2013-2001\)
\(=0\)
Selected by MathYouLike
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Vũ Hà Vy Anh 28/03/2017 at 22:28 -
Kaito Kid 28/03/2017 at 22:08Dear friend ! Is the triangle or rectangle ?
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Lê Nho Khoa 02/04/2017 at 21:57Oh,this Problem is very difficult
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Thám Tử THCS Nguyễn Hiếu 30/03/2017 at 20:02The sum of the equal parts is:
shizuku selected this answer.
3 + 8 = 11 (part)
Baby number is:
198: 11 x 3 = 54
Large numbers are:
198 - 54 = 144
Answer: SB: 54
SL: 144 -
Lê Nho Khoa 02/04/2017 at 21:57
The sum of the equal parts is:
3 + 8 = 11 (part)
Baby number is:
198: 11 x 3 = 54
Large numbers are:
198 - 54 = 144
Answer: SB: 54
SL: 144 -
Nguyễn Đức Hiền 05/04/2017 at 11:18
Tổng số các phần bằng nhau là:
3 + 8 = 11 (một phần)
Số trẻ em là:
198: 11 x 3 = 54
Số lượng lớn là:
198 - 54 = 144
Trả lời: SB: 54
SL: 144
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I like Math English 29/10/2017 at 07:5010+20+30+40+50+60+70+80+90=
=(10+90)+(20+80)+(30+70)+(40+60)+50
=100+100+100+100+50
=450
Hương Yêu Dấu selected this answer.
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Trần Quỳnh Anh 28/12/2017 at 13:14
10+20+30+40+50+60+70+80+90
=(10+90)+(20+80)+(30+70)+(40+60)+50
=100+100+100+100+50
=100.4+50
=400+50
=450
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Detecvite Conan 29/10/2017 at 09:1610+20+30+40+50+60+70+80+90
=10+90+20+80+30+70+40+60+50
=(10+90)+(20+80)+(30+70)+(40+60)+50
=100+100+100+100+50
=450
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Dao Trong Luan 22/08/2017 at 15:31\(A=\dfrac{1}{3}\left(\dfrac{1}{3}-\dfrac{1}{6}+\dfrac{1}{6}-\dfrac{1}{9}+...+\dfrac{1}{123}-\dfrac{1}{126}\right)\)
\(A=\dfrac{1}{3}\left(\dfrac{1}{3}-\dfrac{1}{126}\right)=\dfrac{1}{3}\cdot\dfrac{41}{126}=\dfrac{41}{378}\)
So \(A=\dfrac{41}{378}\)
Selected by MathYouLike -
Help you solve math 22/08/2017 at 15:35We see that:
\(\dfrac{1}{3.6}\)=\(\dfrac{1}{3}\). \(\dfrac{3}{3.6}\)=\(\dfrac{1}{3}\). \(\dfrac{1}{3}\)- \(\dfrac{1}{6}\)
=>A=\(\dfrac{1}{3}\). \(\dfrac{1}{3}\)- \(\dfrac{1}{6}\)+ \(\dfrac{1}{6}\)- \(\dfrac{1}{9}\)+...+\(\dfrac{1}{123}\)- \(\dfrac{1}{126}\)
=\(\dfrac{1}{3}\). \(\dfrac{1}{3}\)- \(\dfrac{1}{126}\)
=\(\dfrac{41}{378}\)
Nguyễn Huy Hoàng selected this answer.
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Trần Đức Bảo 30/03/2017 at 20:1810989
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Nguyễn Đức Kiên 05/04/2017 at 19:57Đ/S là 10989 nha bạn.
