12000-(150.2+180.3+180.2:3)
1. BCNN(15,18) là:
A. 270. B. 18. C. 90. D. 180.
2..BCNN(12,16,48) là:
A. 12 B. 16 C. 48 D. 0
3. BCNN(15,20,50) là:
A. 100. B. 200. C. 300. D. 400.
giúp em hết câu này ạ
580 :(4.x-24 ) = 329-150.2
\(580:\left(4.x-24\right)=329-150.2\)
\(580:\left(4.x-24\right)=329-300\)
\(580:\left(4.x-24\right)=29\)
\(\left(4.x-24\right)=580:29\)
\(\left(4.x-24\right)=20\)
\(4.x=20+24\)
\(4.x=44\)
\(x=44:4=11\)
580 : (4x - 24) = 329 -150 .2
580 : (4x - 24 ) = 329 - 300
580 : (4x - 24) = 29
4x - 24 = 580 : 29
4x - 24 = 20
4x = 44
x =11
#mã mã#
( 425+75 )-( 12.15+50 ) -150.2
\(\left(425+75\right)-\left(12,15+50\right)-150,2\)
\(=500-62,15-150,2\)
\(=437,85-150,2\)
\(=287,65\)
a) 580:(x-24)=329-150.21
b)7.(7-14)+35=25+279:9
a) 580 : ( x - 24 ) = 329 - 150 . 21
=> 580 : ( x - 24 ) = 329 - 150 . 2
=> 580 : ( x - 24 ) = 329 - 300
=> 580 : ( x - 24 ) = 29
=> x - 24 = 20
=> x = 20 + 24
=> x = 44
Vậy x = 44
mk nha các bạn !!!
=> 580 : ( x - 24 ) = 329 - 150 . 2
=> 580 : ( x - 24 ) = 329 - 300
=> 580 : ( x - 24 ) = 29
=> x - 24 = 20
=> x = 20 + 24
=> x = 44
Vậy x = 44
2 mũ 3 x 2 mũ 7 x 2 mũ 4 =
2 mũ 3 x 2 mũ 4 : 2 mũ 5 =
1300 - { 150.2 + [(180.5 ) + 90 ] : 9 } =
215:{185-[2.(56+34)]} =
(-3) + (-125) +(-25 ) =
25+(-38) =
(126) + 159 =
(120)+(-135 ) + 200 =
23.27.24=23+7+4=214
23.24:25=23+4-5=27
(-3)+(-125)+(-25)
=-128+(-25)
=-153
25+(-38)=25-38=-13
126+159=285
120+(-135)+200
=120-135+200
=-15+200
=185
2^3x2^7=2^10x2^4=2^14=16384
2^3x2^4=2^7:2^5=2^2=4
1300-(150.2+(900+90):9)=1300-(150.2+990:9)=1300-(300+11)=1300-311=989
(-3) + (-125)+(-25)= -(3+125+25)= -153
25 + (-38)= -(38-25)= - 13
(126)+159=285
(120)+(-135)+200= -(135-120) + 200= (-15) + 200= +(200-15)=185
Mik đang gấp mn ơi
Tìm X(cấu tạo số)
a.580:(X-24)=329-150.2
b.43-(24-X)=20
c.5.(X-30)+25=100
d.96:[3(X+1)=15]=2
e.X-140:35=270
ai lm nhanh nhất mik chấm điểm cho ;)))
a. 580:(x-24)=329-150.2
580:(x-24)=329-300
580:(x-24)=29
x-24=580:29
x-24=20
x=20+24
x=44
b.43-(24-x)=20
24-x= 43-20
24-x=23
x=24-23
x=1
c.5.(x-30)+25=100
5.(x-30) =100-25
5.(x-30) =75
x-30 =75:5
x-30 =15
x =15+30
x =45
e.x-140:35=270
x-4=270
x=270+4
x=274
Câu d hình như đề bài sai rồi bạn
12000 : 3 =
12000-(1500*2+1800*3+1800*2/3)
12000-(1500*2+1800*3+1800*2/3)
=12000 - (3000+5400+1200)
=12000-9600
=2400
12000 - ( 1500 . 2 + 1800 . 3 + 1800 . 2 : 3 )