17,5 - ( 6 + x)= 8,74
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17,5-(6+x)=8,74
(6+x)=17,5-8,74
(6+x)=8,76
x=8,75-6
x=2,76
vay x=2,76
1.5/10
217,5-(6+X)=8,74
6+X=217,5-8,74
6+X=208,76
X=208,76-6
X=202,76
1 . hàng chục
2 17,5-(6+x)=8,74
6+x=17,5-8,74
6+x=8,76
x=8,76-6
x=2,76
A, 17,5 - (6+x)=8,74
6+x=17,5-8,74
6+x=8,76
x=2,76
B,3/5m3 =..600dm3
=>3/5m3<601dm3
C, 1m2112dm2=..2,12......m2
\(\Rightarrow31,37< x< 34,24\) Vì x \(\in N\Rightarrow x\in\left\{32;33;34\right\}\)
\(\left[\frac{1}{2}-\frac{1}{3}+\frac{1}{4}\right]:\left[\frac{1}{6}-\frac{1}{x}\right]=17,5\)
\(\Rightarrow\frac{5}{12}:\left[\frac{1}{6}-\frac{1}{x}\right]=\frac{35}{2}\)
\(\Rightarrow\frac{1}{6}-\frac{1}{x}=\frac{5}{12}:\frac{35}{2}\)
\(\Rightarrow\frac{1}{6}-\frac{1}{x}=\frac{1}{42}\)
\(\Rightarrow\frac{1}{x}=\frac{1}{6}-\frac{1}{42}\)
\(\Rightarrow\frac{1}{x}=\frac{1}{7}\)
\(\Rightarrow x=1:\frac{1}{7}\)
\(\Rightarrow x=7\)
Học tốt # ^-<
\(\frac{\frac{1}{2}-\frac{1}{3}+\frac{1}{4}}{\frac{1}{6}-\frac{1}{x}}=17.5\)
\(\frac{\frac{1}{6}+\frac{1}{4}}{\frac{1}{6}-\frac{1}{x}}=\frac{35}{2}\)
\(\frac{\frac{5}{12}}{\frac{1}{6}-\frac{1}{x}}=\frac{35}{2}\)
\(\frac{1}{6}-\frac{1}{x}=\frac{\frac{5}{12}}{\frac{35}{2}}\)
\(\frac{1}{6}-\frac{1}{x}=\frac{\frac{5}{12}}{\frac{35}{2}}\)
\(\frac{1}{6}-\frac{1}{x}=\frac{1}{42}\)
\(\frac{1}{x}=\frac{1}{6}-\frac{1}{42}\)
\(\frac{1}{x}=\frac{1}{7}\)
\(\Rightarrow x=7\)
CHÚC BẠN HỌC TỐT!!! :))
17,5 - ( 6 + x ) = 8,74
6 + x = 17,5 - 8,74
6 + x = 8,76
x = 8,76 - 6
x = 2,76
\(17,5-\left(6+x\right)=8,74\)
\(11,5-x=8,74\)
\(x=11,5-8,74\)
\(x=2,76\)