x - 320 : 32 = 25 . 16
giải giúp mik vs ạ
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\(2.\left(70-x\right)+2^3.3^2=92\)
\(140-2x+72=92\)
\(-2x=92-212\)
\(-2x=-120\)
\(x=60\)
`@` `\text {Ans}`
`\downarrow`
`a)`
`4x = 320 \div 16`
`=> 4x = 20`
`=> x = 20 \div 4`
`=> x=5`
Vậy, `x=5`
`b)`
`(x-10) \div 5 = 2`
`=> x - 10 = 2*5`
`=> x - 10 = 10`
`=> x = 10 + 10`
`=> x=20`
Vậy, `x=20`
`c)`
`(20+x) \div 5 = 25`
`=> 20+x = 25*5`
`=> 20+x = 125`
`=> x = 125 - 20`
`=> x = 105`
Vậy, `x=105.`
`@` `\text {Kaizuu lv uuu}`
A=1/2^2+1/3^2+...+1/10^2
=>A<1-1/2+1/2-1/3+...+1/9-1/10=1-1/10<1
1 would you have done
2 rains
3 wouldn't have married
4 would have to
5 had known
6 will never pass
7 would catch
8 would have had
9 would have got
10 tries
11 had lost
12 wouldn't have gone
13 doesn't he come
14 wouldn't have come
15 had been
16 isn't
17 is
18 had been
19 fell
20 could help
21 had come - would have met
22 would buy - had
23 bought - wouldn't look
24 had known - would have met
25 wouldn't have gone - had asked
x - 320 : 32 = 25 . 16
x - 10 = 400
x = 400 + 10
x = 410
\(=>x=\left(320:32\right)+\left(25.26\right)=10+400=410\)