so lieu cua tao ne`.vay la day du roi nhe

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so lieu cua tao ne`.vay la day du roi nhe

Post  nguyenthaivuong0712 on Thu May 20, 2010 8:07 pm

Bai1
KLR XIMANG
M = 65 g
LAN 1: Va =22.2 cm3
LAN 2:Va =21.8 cm3
Bai tinh cap phoi cua cat
sang Khoi luong (g) tong:1000g
4
2.5 24
1.25 73
0.63 195
0.315 530
0.16 174

Bai thu mac be tong
Cap phoi 1:tinh theo kg
Xm 320
Cat 680
Da 1150
n/x =0.45 ,
n = 144 l
sn=0
cap phoi 2
xm 320
cat 680
da 1150
n/x: 0.45 suy ra n= 144 l
phu gia :0.6% xm
sn=12.8

nguyenthaivuong0712

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