a)\(\dfrac{x}{27}=-\dfrac{2}{3,6}\)
=>\(x=\dfrac{27.\left(-2\right)}{3,6}=-15\)
b)\(-0,52:x=-9,36:16,38\)
=>\(\dfrac{-0,52}{x}=\dfrac{-9,36}{16,38}\)
=>\(x=\dfrac{-0,52.16,38}{-9,36}=\dfrac{91}{100}0,91\)
c)\(\dfrac{4\dfrac{1}{4}}{2\dfrac{7}{8}}=\dfrac{x}{1,61}\)
=>\(\dfrac{\dfrac{17}{4}}{\dfrac{23}{8}}=\dfrac{x}{1,6}\)
=>\(\dfrac{4,25}{2,875}=\dfrac{x}{1,61}\)
=>\(x=\dfrac{4,25.1,61}{2,875}=2,38\)
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