Tim a biet
a) 697 : (15a + 346) :a = 17
Những câu hỏi liên quan
697:15a + 364/a =17
Tìm a thuộc N biết
a) 697 : (15a+364/a) = 17
b) 92 . 4 - 27 = a+350/a + 315
tìm a thuộc N
697 : \(\frac{15a+364}{a}\)=17
\(\frac{15a+364}{a}\)=697:17
\(\frac{15a+364}{a}\)=41
15a+364=41a
26a=364
a=14
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|x|=1+2+3+4+5+...+2010 tìm x
2mũ x=2+4+6+8+10+...+2010 tìm x
697:15a+364/a=17 tìm a
\(\left|x\right|=1+2+3+...+2010\)
\(\left|x\right|=\frac{\left(2010+1\right).2010}{2}\)
\(\left|x\right|=2011.1005\)
\(\left|x\right|=2021055\)
\(x=\pm2021055\)
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\(2^x=2+4+6+...+2010\)
\(2^x=\frac{\left(2010+2\right).1005}{2}\)
\(2^x=1006.1005\)
\(x=\frac{log\left(1011030\right)}{log\left(2\right)}\)(Nguồn: wolframalpha)
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\(697\div15a+\frac{364}{a}=17\)
\(\frac{697}{15a}+\frac{5460}{15a}=17\)
\(6157=17.15a\)
\(6197=255a\)
\(a=\frac{6197}{255}\)
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\(a.697:\frac{15a+364}{a}=17\)
\(b.92.4-27=\frac{a+350}{a}+315\)
a.\(697:\frac{15a+364}{a}=17\)
b.\(92.4-27=\frac{a+350}{a}+315\)
bài 4 tìm a thuộc N
a)697:\(\dfrac{15a+364}{a}=17\)
b)92.4-27=\(\dfrac{a+350}{a}+315\)
\(a.697:\dfrac{15a+364}{a}=17\\ =>\dfrac{15a+364}{a}=697:17=41\\ =>41a=15a+364\\ =>41a-15a=364\\ =>26a=364=>a=\dfrac{364}{26}=14 \\ b.92.4-27=\dfrac{a+350}{a}+315 \\ =>92.4-27-315=\dfrac{a+350}{a}\\ =>26=\dfrac{a+350}{a}\\ =>26a=a+350=>25a=350 \\ =>a=14\)
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697:15a+364/x=17
tìm x
Tìm a \(\in\) N:
a) \(697:\frac{15a+364}{a}=17\)
b) \(92\cdot4-27=\frac{a+350}{a}+315\)
a) \(697:\frac{15a+364}{a}=17\)
\(\Rightarrow\frac{15a+364}{a}=697:17\)
\(\Rightarrow\frac{15a+364}{a}=41\)
\(\Rightarrow15a+364=41a\)
\(\Rightarrow364=26a\Rightarrow a=364:26\)
\(\Rightarrow a=14\)
b)
\(368-27=\frac{a+350}{a}+315\)
\(341=\frac{a+350}{a}+315\)
\(\left(a+350\right):a=341-315\)
\(\left(a+350\right):a=26\)
\(a+350=26a\)
\(\Rightarrow350=25a\)
\(\Rightarrow a=14\)
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