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(2,5 x 11,25 + 11,25 x 7,5) x( 75 x 11 - 75 : 0,1 - 75)
ai nhanh tớ sẽ tick ạ, ghi đầy đủ lời giải ạ![](https://rs.olm.vn/images/avt/0.png?1311)
= ( 11,25 x (2,5 + 7,5) ) x ( 75 x 11 - 75 : 0,1 -75 x1)
=( 11,25 x 10) x (75 x ( 11 -1 :0,1 ) )
= 112,5 x ( 75 x 100 )
= 112,5 x 7500
= 1125000
( 2,5 \(\times\) 11,25 \(\) + 11,25 \(\times\)7,5) \(\times\)( 75 \(\times\) 11 - 75: 0,1 - 75)
= (2,5 \(\times\) 11,25 + 11,25 \(\times\) 7,5) \(\times\)( 75 \(\times\) 11 - 75 \(\times\) 10 - 75 \(\times\) 1)
=( 2,5 \(\times\) 11,25 + 11,25 \(\times\) 7,5) \(\times\) 75 \(\times\)( 11 - 10 - 1)
= ( 2,5 \(\times\) 11,25 + 11,25 \(\times\)7,5 ) \(\times\) 75 \(\times\) 0
= 0
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0,1 : x + 0,2 : x + 0,3 : x + 0,4 : x + 0,5 : x = 0,5
=> (0,1 + 0,2 + 0,3 + 0,4 + 0,5) : x = 0,5
=> 1,5 : x = 0,5
=> x = \(\frac{3}{2}:\frac{1}{2}=\frac{3}{2}\cdot\frac{2}{1}=3\)
Vậy x = 3
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A = (91,5 X 26,3 - 17,4 x 52,6)x(41x11 -4100 x0,1 - 41)
A = (91,5 x 26,3 - 17,4 x 52,6) x 41 x (11 - 100X0,1 - 1)
A = (91,5 x26,,3 - 17,4 x 52,6) x 41 ( 11 - 10 - 1)
A = (91,5 x26,,3 - 17,4 x 52,6) x 41 x 0
A = 0
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2.3x3,4+2,3x5,6x2,3 =2,3x3,4+2,3x5,6x2,3x1 =2,3x(3,4+5,6+1) =2,3x10 =23
Giải
=2,3 x 3,4 + 2,3 x 5,6 + 23 x 1
= 2,3 x (3,4 + 5,6 + 1)
=2,3 x 10
=23
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\(x\times\left(0,1+4+2,9+2+1\right)=25,2\)
\(10x=25,2\)
\(x=2,52\)
\(x\times0,1+x\times4+x\times2,9+x\times2+x=25,2\)
\(x\times\left(0,1+4+2,9+2+1\right)=25,2\)
\(x\times10=25,2\)
\(x=25,2:10\)
\(x=2,52\)
tìm x mè giải thích sao :v?
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\(\dfrac{3}{5}\) x \(\dfrac{1}{7}\) x 1\(\dfrac{1}{2}\)
= \(\dfrac{3}{35}\) x \(\dfrac{3}{2}\)
= \(\dfrac{9}{70}\)
\(x\times1010-x:0,1=90000\)
\(x\times1010-x\times10=90000\)
\(x\times\left(1010-10\right)=90000\)
\(x\times1000=90000\)
\(x=90000:1000\)
\(x=90\)