(x + 125) : 312 = 14 (dư 300)
tìm y biết :
a) (x + 125) : 312 = 14 (dư 300)
b) (x – 234) : 23 = 128 (dư 21)
c) (x - 24) x 2020 = 2020 x 33
d) 5 x (x + 2019) = 3800 x 5
a.(x + 125) : 312 = 14 (dư 300)
x+125 = 14 x 312 + 300
x+125 = 4 668
x= 4 668 - 125
x=4 543
b.(x-234):23=128 (dư 21)
x-234=128 x 23 + 21
x-234=2 965
x=2 965 + 234
x=3 199
c.(x-24) x 2020=2020x33
(x-24)x2020=66 660
x-24=66 660:2020
x-24=33
x=33+24
x=57
d.5 x (x+2019)=3800 x 5
5 x (x+2019)=19 000
x+2019=19000:5
x+2019=3800
x=3800-2019
x=1 781
HẾT=)))
tìm y biết :
a) (x + 125) : 312 = 14 (dư 300)
b) (x – 234) : 23 = 128 (dư 21)
c) (x - 24) x 2020 = 2020 x 33
d) 5 x (x + 2019) = 3800 x 5
a.(x + 125) : 312 = 14 (dư 300)
x+125 = 14 x 312 + 300
x+125 = 4 668
x= 4 668 - 125
x=4 543
b.(x-234):23=128 (dư 21)
x-234=128 x 23 + 21
x-234=2 965
x=2 965 + 234
x=3 199
c.(x-24) x 2020=2020x33
(x-24)x2020=66 660
x-24=66 660:2020
x-24=33
x=33+24
x=57
d.5 x (x+2019)=3800 x 5
5 x (x+2019)=19 000
x+2019=19000:5
x+2019=3800
x=3800-2019
x=1 781
HẾT=)))
tìm x
(x+125) /312= 14(dư300)
Tính nhanh
312 x 425 + 547 + 312
234 x 1257 - 234 x 257
175 x 1274 - 175 x 273 - 175
4 x 125 x 25 x 8
Lời giải:
1. Bạn coi lại đề
2. $=234\times (1257-257)=234\times 1000=234000$
3. $=175\times (1274-273-1)=175\times 1000=175000$
4. $=(4\times 25)\times (125\times 8)=100\times 1000=100000$
1. ...............................
2.
3.
4.
x : 23 = 29 dư 8 ai giải nhanh đầy đủ đc tick
328 : x = 5 dư 3
(1073 : x ) + 884 = 629 + 284
769 - 25 x X = 594 - 125
612 + ( 210 : x ) - 312 = 81 + 234
X - 78 : 3 = 101 x 2
tính nhanh A | 38 + 125 + 29 +17
B | 312 X 45 : 15
C | 100 - 99+ 98 - 97 + 96 - 95 + 94 - 93 + 92 -91
D |(125 x 36 ) : ( 5 x 9 )
A=[(38+17)+125]+29
A=175+29
A=204
B=312.3
B=936
C=1+1+1+1+1
C=5
D=(125:5).(36:9)
D=25.4
D=100
25 nhân x-x =312
(x+20) +(x+30) +(x+50) + x =300
25x - x = 312
x ( 25 - 1 ) = 312
24x = 312
x = 13
( x + 20 ) + ( x + 30 ) + ( x + 50 ) + x = 300
( x + x + x + x ) + ( 20 + 30 + 50 ) = 300
4x + 100 = 300
4x = 200
x = 50
1248/5 x 625 x 4 x 2
2 x 312 x 125/25 x 10
Tìm x biết − 1 4 + x + 0 , 75 = 3 1 2
− 1 4 + x + 0 , 75 = 3 1 2 → x = 7 2 − 3 4 + 1 4 → x = 3