o 1 nha may co 3 to cong nhan neu lay 20% so cong nhan o to 1 chia deu cho 2 to con lai tyhi so cong nhan o 3 to bang nhau neu to 1 co them 8 cong nhan thi so cong nhan cua to 1 bang tong so cong nhan cua 2 to kia hoi to 1 co ? cong nhan
mot to cong nhan co so nu bang 1/3 so nam.sau theo cong viec nen da thay doi 3 cong nhan nam bang 3 cong nhan nu . vi vay so cong nhan nu bang 2/3 so nam . hoi co bao nhieu cong nhan
1 gio 45 phut nhan 3 cong 1,75 gio nhan 2 cong 105 phut nhan 4 cog 1 3/4 gio
tinh nhanh
a,[42 nhan 43 cong 43 nhan 57 cong 63] cong 506 chia 4
b,17 nhan 4 cong 8 nhan 4 cong 3 nhan 100
x cong x nhan 2 cong x nhan 3 cong x nhan 4 bang 20,06
Tim x
[X nhan 7 cong 8 ] chia 5 = 10
280 chia [7 cong 3 nhan X] = 4
[ X nhan 5] nhan 19 chia 13= 57
6 nhan [28 - 8] nhan X ] = 72
4 nhan [ 36 - 4 nhan X] = 3,2
[X - 15] nhan 3 chia 12 =6
[ X chia 4 cong 6] nhan 7=70
[ X chia 2 cong 50] chia 5=12
5 nhan [ 7 cong 3 nhan X] = 140
help me ////\\\\\
tim X nha mn jup mk ik mk dg voi lam
tim x nha mn
l,[12 nhan 15 - x] nhan 1/4= 120 nhan 1/4
i, [x nhan 0,25 cong 2012 ] nhan 2013 =[50 cong 2012] nhan 2013
k,[ x - 1/2] nhan 5/3 = 7/4 - 1/2
Mot xi nghiep co 60 cong nhan duoc chia thanh 2 to trong do to 1 chiem 40% tong so cong nhan.Hoi
a.To 1 co bao nhieu cong nhan
b.Ti so %giua so cong nhan to 1 va so cong nhan to 2 la bao nhieu
4.65 nhan 2 nhan 6 cong 9 nhan 4 nhan 456.32 cong 456.32 nhan 18 cong 456.32 nhan 7 nhan 4 cong 6 nhan 456.32