X:35=100
Số tự nhiên x trong phép tính ( 35 – x ) . 100 = 100 là :
A. 0 B. 100 C.35 D. 53
Tính cách hợp lí nhất:
b,35 x 34 + 35 x 66 + 100 x 7
`35 xx 34 + 35 xx 66 + 100 xx 7`
`= 35 xx ( 34+66) + 100 xx 7`
`= 35 xx 100 + 100 xx 7`
`= 3500 + 700`
`= 4200`
`35xx34+35xx66+100xx7`
`=35xx(34+66)+100xx7`
`=35xx100+100xx7`
`=100xx(35+7)`
`=100xx42`
`=4200`
Tính nhan giá trị biểu thức: 35 x 18 - 9 x 35 x 2 + 100
35x18-9x35x2+100
= 35x18-9x2x35+100
= 35x18-18x35+100
= 35x0x35+100
= 0x35+100
= 0+100
= 100
nhớ đ cho mik nha
Tìm x, biết:
a) x - 280: 35 - 5.54;
b) ( x - 120) : 35 = 5;
c) (x + 100). 4 = 800;
d) x . 5 + 10.9 = 990
a) x = 278.
b) x = 295.
c) x = 100.
d) x = 180.
Tìm x, biết:
a) x - 280: 35 - 5.54;
b) ( x - 120) : 35 = 5
c) (x + 100). 4 = 800;
d) x . 5 + 10.9 = 990
a) x = 278.
b) x = 295.
c) x = 100.
d) x = 180
( 267 + 864 ) - ( 263 + 860 )
( 257 x 35 + 35 x 37 ) : 60
( 257 x 139 - 257 x 39 ) : 100
100 - 95 + 90 - 85 + 80 - 75 + 70 - 65 + 60 - 65
a. = 267 + 864 - 263 - 860
= (267 - 263) + (864 - 860)
= 4 + 4
= 8
b. = [(257 + 37) x 35] : 60
= [294 x 35] : 60
= 10290 : 60
= 171,5
c. = [(139 - 39) x 257] : 100
= [100 x 257] : 100
= 25700 : 100
= 257
Tìm x, biết:
a) (x - 3.5).12 = 0;
b) 35. (x-10) = 35;
c) ( x -5): 3 + 3 = 24;
d) ( x- 4) : 3 - 2 = 100.
35 x 18 - 9 x 70 + 100
`35 xx 18 - 9 xx 70 + 100`
`=(35 xx 9 xx 2)-(9 xx 35 xx2)+100`
`=0+100`
`=100`
tìm x:
1245:x+64:x-35:x+26:x=100
\(1245:x+64:x-35:x+26:x=100\\ \Rightarrow1245\times\dfrac{1}{x}+64\times\dfrac{1}{x}-35\times\dfrac{1}{x}+26\times\dfrac{1}{x}=100\\ \Rightarrow\left(1245+64-35+26\right)\times\dfrac{1}{x}=100\\ \Rightarrow1300\times\dfrac{1}{x}=100\\ \Rightarrow\dfrac{1}{x}=\dfrac{1}{13}\\ \Rightarrow x=13\)
x=(1245+64-35+26):100 x=1300:100 x=13
52-(35-x)=100
\(52-\left(35-x\right)=100\)
\(35-x=-48\)
\(x=83\)
52-(35-x)=100
35-x =52-100
35-x =( -48)
x =(-48) + 35
x = (-13)