Respuesta :

Answer: 6 1/4 kilometers per hour

Step-by-step explanation:

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devishri1977

Answer:

[tex]\sf 6 \dfrac{1}{4}Kmph[/tex]

Step-by-step explanation:

Average speed:

     [tex]\sf Distance = 3\dfrac{3}{4}=\dfrac{15}{4} \ Km\\\\\\Time = \dfrac{3}{5} \ hours\\\\ \boxed{\bf Speed = \dfrac{Distance}{time}}[/tex]

                  [tex]\sf = \dfrac{15}{4} \div \dfrac{3}{5}\\\\\\=\dfrac{15}{4}*\dfrac{5}{3}\\\\\\=\dfrac{5*5}{4}\\\\=\dfrac{25}{4}\\\\\\=6\dfrac{1}{4} \ Kmph[/tex]