100 nhan 50 = 200 d k
x+50=100+200
k mk nhé
x + 50 = 100 + 200
x + 50 = 300
x = 300 - 50
x = 250
k mik nha
mik k lại
x+50=100+200
x+50=300
x=300-50
x=250
k mk nhé
x+50 = 100+200
x+50 = 300
x = 300-50
x = 250
vậy x bằng 250
1nhan 100 + 2 nhan 100 + 5nhan 100+10nhan 100=20 nhan 100+ 50 nhan 100 + 100 nhan 100 =????????????????
ai nhanh nhat minh tick cho
1 x 100 + 2 x 100 + 5 x 100 + 10 x 100 + 20 x 100 + 50 x 100 + 100 x 100
= 100 x ( 1 + 2+ 5 + 10 + 20 + 50 + 100 )
= 100 x 188
= 18800
90 + 50 + 60 + 100 + 200 = ???
_Ai k cho mk thì mk k lại_
90 + 50 + 60 + 100 + 200
= (90 + 50 + 60) + 100 + 200
= 200 + 100 + 200
= 200 x 2 + 100
= 400 + 100
= 500
90 + 50 + 60 + 100 + 200
= 140 + 60 + 100 + 200
= 200 + 100 + 200
= 300 + 200
= 500
bai 1 so sánh A và B biết
A=199 nhàn 201
B=200 nhân 200
bai 2 tim x
a) 2 nhan (x+1)=50
b) (x+74)-318=200
c) 38 nhan(x-1)=28
Câu hỏi :
100+50:2+75+200:2+400:2+500=?
3 ng nhanh nhất mik k cho
100+50:2+75+200:2+400:2+500
= 100 + 25 + 75 + 100 + 200 + 500
= 100 + 100 + 100 + 200 + 500
= 500 + 500
= 1000
100 + 50 : 2 + 75 + 200 : 2 + 400 : 2 + 500
= 100 + 25 + 75 + 100 + 200 + 500
= 125 + 75 + 100 + 200 + 500
= 200 + 100 + 200 + 500
= 300 + 200 + 500
= 500 + 500
= 1000
100 + 50 : 2 + 75 + 200 : 2 + 400 : 2 + 500
= 100 + 25 + 75 + 100 + 200 + 500
= 125 + 75 + 100 + 200 + 500
= 200 + 100 + 200 + 500
= 300 + 200 + 500
= 500 + 500
= 1000
60+40+50+50+40+5+95+50+10
k mk k lai
nho gui tin nhan nhe
\(60+40+50+50+40+5+95+50+10\)
\(=\left(60+40\right)+\left(50+50\right)+\left(40+50+10\right)+\left(95+5\right)\)
\(=100+100+100+100\)
\(=100.4\)
\(=400\)
nho gui tin nhan do
60 + 40 + 50 + 50 + 40 + 5 + 95 + 50 + 10
= 100 + 100 + 45 + 145 + 10
= 200 + 200
= 400
chúc bạn học tốt ^ _ ^
=(60+40)+(50+50)+(40+10+50)+(5+95)
=100+100+100+100
=400
a) 300 + 40 + 0,05
= 340 + 0,05
= 340,05
b) 50 + 0,6 + 0,07
= 50,6 + 0,07
= 50,67
c) 200 + 6 + 3/100
= 200 + 6 + 0,03
= 206 + 0,03
= 206,03
d) 27 + 4/10 + 6/100
= 27 + 0,4 + 0,06
= 27 + 0,46
= 27,46
trung hòa 100 ml dd NaOH 1M cần Vml dd H2SO4 0,5M. TÌM giá trị V là
A.100 B.50 C.200 D.150
PTHH: \(2NaOH+H_2SO_4\rightarrow Na_2SO_4+2H_2O\)
Ta có: \(n_{NaOH}=0,1\left(mol\right)\) \(\Rightarrow n_{H_2SO_4}=0,05\left(mol\right)\) \(\Rightarrow V_{H_2SO_4}=\dfrac{0,05}{0,5}=0,1\left(l\right)=100\left(ml\right)\)
1, 50+50+50+100/5=
2, 100/100+20/10+5=
3, 200/100+50/10+6=
1)50+50+50+100/5
=50+50+50+20
=100+70
=170
2)100/100+20/10+5
=1+2+5
=3+5
=8
3)200/100+50/10+6
=2+5+6
=7+6
=13
minh tr nha ban
goi x la stn biet rang neu lay x nhan 2 roi cong 50 vao tich nhan tong voi 5 duoc bao nhieu roi tru 200 roi chia cho 10 duoc ket qua la 30
ta có:
(X x 2 + 50) x 5 -200 :10 =30
(X x 2 + 50) x 5 -200=30 x 10 =300
(X x 2 + 50) x 5 = 300 + 200 = 500
X x 2+50 = 500 : 50=100
X x 2 = 100 - 50= 50
X = 50:2=25