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1,26 x 3,6 : 0,28 - 6,2
= 4,536 : 0,28 - 6,2
= 16,2 - 6,2
= 10
~ Hok tốt ~
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\(10:\frac{35}{24}:\frac{36}{7}=10x\frac{24}{35}x\frac{7}{36}=\frac{10}{1}x\frac{24}{35}x\frac{7}{36}=\frac{2}{1}x\frac{2}{1}x\frac{1}{3}=\frac{4}{3}\)
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4a) \(\frac{x}{36}=\frac{3}{4}\)
\(\Rightarrow\frac{x}{36}=\frac{27}{36}\)
\(\Rightarrow x=27\)
4b) 33 + x = 71 - 26
33 + x = 45
x = 45 - 33
x = 12
4c) x * (3,5 + 1,5) = 10
x * 5 = 10
x = 10 ; 5 = 2
4,
\(a,\frac{x}{36}=\frac{24}{32}\)
\(=>\frac{x}{36}=\frac{3}{4}=\frac{27}{36}\)
\(=>x=27\)
\(b,71-\left(33+x\right)=26\)
\(=>-\left(33+x\right)=26-71=-45\)
\(=>33+x=45\)
\(=>x=12\)
\(c,3,5\cdot x+1,5\cdot x=10\)
\(>x\cdot\left(3,5+1,5\right)=10\)
\(=>x\cdot5=10\)
\(=>x=2\)
. là nhân nha
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a: =1h15p+4h45p+2h24p+3h36p
=6h+6h
=12h
b: =2,5h+4,5h+5h
=7h+5h
=12h
c: =10h-8h=2h