Question

un tren recorrio 109 km y 300 m ¿cuantos dam falta para recorrer 20 000 dam?

Answer 1

$Hola~~ Princes \\ \\ 109km---\ \textgreater \ tenemos~que~pasar~a~\boxed{dam} \\ \\ 1km----\ \textgreater \ 100dam \\ 109km---\ \textgreater \ x \\ Por~aspa~simple~tenemos: \\ \\ \frac{1\not km}{109\not km}= \frac{100dam}{x} \\ \\ x=10~900dam \\ por~tanto~que: \\ \\ \boxed{109km=10~900dam}$

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$Igual~tenemos~que~pasar~a~\boxed{dam} \\ \\ 300m=? \\ \\ 1dam----\ \textgreater \ 10m \\ y------\ \textgreater \ 300m \\ Por~aspa~simple~tenemos: \\ \frac{1dam}{y} = \frac{1\not0\not m}{30\not0\not m} ~~---\ \textgreater \ simplificando~tenemos: \\ \\ \frac{1dam}{y} = \frac{1}{30} ~~---\ \textgreater \ despejando~(y)~tenemos: \\ \\ y=30dam \\ por~tanto: \\ \\ \boxed{300m=30dam}$

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$Ahora~sumamos: \\ \\ \underbrace{10~900dam+30dam}_{\boxed{10~930dam}} \\ \\ Ahora~lo~que~falta~para~20~000dam~es: \\ \\ \underbrace{20~000dam-10~900dam}_~~~~~~~~~~~~~~~~~~~~{\boxed{9~070dam}---\ \textgreater \ lo~que~falta}$

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