= 18 nhé :-]

\(\text{1,8 x 2 x 562 + 0,36 x 4830}=3762\)

`1,8 xx 2 xx 562 + 0,36 xx 4830`

`=3,6 xx 562 + 1738,8`

`=2023,2 + 1738,8`

`=3762`

\(1,8.2.562+0,36.4830\)

=\(3,6.562+0,36.10.483\)

=\(3,6.652+3,6.483\)

=\(3,6.\left(562+483\right)\)=\(3,6.1045\)=3762

\(=3,6\times123+3,6\times1567+3,6\times8310\)

\(=3,6\times\left(123+1567+8310\right)\)

\(=3,6\times10000\)

\(=36000\)

a) 101 –  0,36 : 3,6 x 1,8 + 8,96

= 101 – 2,6 x 1,8 + 8,98

= 101 – 4,68 + 8,96

= 96,32 – 8,96 = 87,36

b) 4,5 : (3,58 + 4,42)

= 4,5 : 8

= 0,5625

a) x*1,2+x*1,8=45

x*(1,2+1,8)=45

x*3=45

x=45:3

x=15

b)x*10,8-x*1,8=108

x*(10,8-1,8)=108

x*9=108

x=108:9

x=12

học tốt nha em ^_^

\(a)\)\(x\times1,2+x\times1,8=45\)

\(\Rightarrow\)\(x\times\left(1,2+1,8\right)=45\)

\(\Rightarrow\)\(x\times3=45\)

\(\Rightarrow\)\(x=45\div3\)

\(\Rightarrow\)\(x=15\)

Sửa đề:

\(b)\)\(x\times10,8-x\times1,8=108\)

\(\Rightarrow\)\(x\times\left(10,8-1,8\right)=108\)

\(\Rightarrow\)\(x\times9=108\)

\(\Rightarrow\)\(x=108\div9\)

\(\Rightarrow\)\(x=12\)

x * 1,2 + x* 1,8= 45

x * (1,2+1,8)=45

x * 3 = 45

x =45:3

x = 15

x*(1.2+1.8)=45

x*3=45

x=45:3

x=15

x * 1,2 + x* 1,8= 45

x * (1,2+1,8)=45

x * 3 = 45

x =45:3

x = 15

x*1,2+x*1,8=45

=>x.(1,2+1,8)=45

=>x.3=45

=>x=15

Ai tích mk mk sẽ tích lại

x * 1,2 + x * 1,8 = 45

x * ( 1,2 + 1,8 ) = 45

x * 3 = 45

x = 45 : 3

x = 15

Mk nhanh nhất đó