252\x =84\97
252\ x =84\97
\(\frac{252}{x}=\frac{84}{97}\)
\(\Rightarrow252:x=\frac{84}{97}\)
\(x=252:\frac{84}{97}\)
\(x=291\)
252 \ x =84\97
\(\frac{252}{x}\)=\(\frac{84}{97}\)
Vì 252:84=3
=> x:97=3
x=3*97
x= 291
=> \(\frac{252}{291}\)=\(\frac{84}{97}\)
tim x biet
\(\frac{252}{x}\)= \(\frac{84}{97}\)
Ta có :
252/x = 84/97
=> x = 252/84/97
=> x = 291
Vậy nhé, nhớ k cho mk đó
19,96 +4,19 -24 ,15 :(:1/4-1/4)=23,15
252/x=84/97
x-2/255=114/153
*19,96+4,19-24,15:(1/4-1/4) *252/x=84/97
=19,96+4,19-24,15:0 x=252x97:84
=19,96+4,19-0 x=291
=24,15-0 * x-2/255=114/153
=24,15 x-2/255=38/51
x=38/51+2/255
x=64/85
a ) ko rõ đề
b )\(\frac{252}{x}=\frac{84}{97}\)
=> 252 . 97 = x . 84
=> x . 84 = 24 444
x = 24 444 : 84
x = 291
Vậy x = 291
c ) x - \(\frac{2}{255}=\frac{114}{153}\)
x = 114/153 + 2/255
x = 64/85
Vậy x = 64/85
tim x biet:
\(\frac{252}{x}\) = \(\frac{84}{97}\)
\(\frac{9}{24}\)= \(\frac{x}{56}\)
x.84=252.97
x=24444:84
x=291
x.24=9.56
x=504:24
x=21
k nha
A) \(\frac{252}{X}\) = \(\frac{84}{97}\) B) \(\frac{x}{17}\) + \(\frac{19}{34}\) = \(\frac{1}{2}\)
a) Ta có:
252/x = 84/97
==> x.84=252.97
==> x.84= 24444
==> x=24444:84
==> x=291
b) x/17 + 19/34=1/2
X/17=1/2–19/34
X/17=17/34–19/34
X/17=—2/34
==> x.34=17.(—2)
==> x.34=-34
==> x=(—34):34
==> x=—1
11-(x+84)=97
-(x+84)+213=-16
x+(-35)=18
-2x-(-17)=15
11- (x+84) = 97
=> 11 -x - 84 = 97
=> 11-x = 181
=> x= 11- 181
=> x= -170
cấc câu sau làm tương tự
11 - (x + 84) = 97
x + 84 = 11 - 97
x + 84 = -86
x = -86 - 84
x = -170
-(x + 84) + 213 = -16
-x - 84 = -16 - 213
-x - 84 = -229
-x = -229 + 84
-x = -145
x = 145
x + (-35) = 18
x - 35 = 18
x = 18 + 35
x = 53
-2x -(-17)= 15
-2x + 17 = 15
-2x = 15 - 17
-2x = -2
x = -2 : (-2)
x =1
a,11-(x+84)=97
11-x-84 =97
11-x =97+84
11-x =181
x =11-181
x =-170
b,-(x+84)+213=-16
-x-84+213 =-16
-x-84 =-16-213
-x-84 =-229
-x =-229+84
-x =-145
x =145
c,x+(-35)=18
x-35 =18
x =18+35
x =53
d,-2x-(-17)=15
-2x+17 =15
-2x =15-17
-2x =-2
-x =-2:2
-x =-1
x =1
1im cac so tu nhien x,y biet:
1. 252/x=84/97
2.x-2/255=114/153
3.50/19 nhan38/25<x<69/17+33/17
4.7/15<x/40<8/15
5.(1 1/4 -3/5):17/20<x/17<(5 1/3-3 1/2):12/17
6.y/15=2/5
7.3/x-7=27/135
help me
1)\(\frac{252}{x}=\frac{84}{97}\Rightarrow\)\(\frac{84}{97}=\frac{252}{291}\Rightarrow x=291\)
6) \(\frac{y}{15}=\frac{2}{5}\Rightarrow\frac{2}{5}=\frac{6}{15}\Rightarrow x=6\)
11 – (x + 84) = 97
11 - (x + 84 ) = 97
\(\Rightarrow x+84=-86\)
\(\Rightarrow x=-170\)
11 - (x + 84) = 97
(x + 84) = 11 - 97
(x + 84) = -86
x = -86 - 84
x = -170
Trả lời:
11 - (x + 84) = 97
x + 84 = -86
x = -170
Vậy x = -170
Hok tốt!
Vuong Dong Yet