\[\boxed{\mathbf{1.}}\]
\[Проверка:\]
\[\boxed{\mathbf{2.}}\]
\[576\ :12 = 48\ \left( \frac{км}{ч} \right) -\]
\[скорость\ машины.\]
\[Ответ:\ 48\ \frac{км}{ч}.\]
\[\boxed{\mathbf{3.}}\]
\[4 \cdot (600\ :5) = 4 \cdot 120 = 480\ (А)\]
\[(318 - 188)\ :5 = 130\ :5 =\]
\[= 26\ (Ж)\]
\[240\ :60 + 106 = 4 + 106 =\]
\[= 110\ (Н)\]
\[690\ :(120\ :40) = 690\ :3 =\]
\[= 230\ (Е)\]
\[8 \cdot (160 - 90) = 8 \cdot 70 =\]
\[= 560\ (Д)\]
\[540\ :30 \cdot 20 = 18 \cdot 20 = 360\ (К)\]
\[560\] | \[230\] | \[110\] | \[230\] | \[26\] | \[360\] | \[480\] |
---|---|---|---|---|---|---|
\[Д\] | \[Е\] | \[Н\] | \[Е\] | \[Ж\] | \[К\] | \[А\] |