\[\boxed{\mathbf{3.}}\]
\[(Б)\ 35 + 90 = 125\ :5 =\]
\[= 25 + 75 = 100 \cdot 6 =\]
\[= 600\ :4 = 150\ (Ь)\]
\[(И)\ 105\ :3 = 35 + 90 =\]
\[= 125 \cdot 5 = 625 - 28 =\]
\[= 597\ :3 = 199\ (К)\]
\[(И)\ 85 + 15 = 100 \cdot 5 =\]
\[= 500\ :4 = 125 - 25 =\]
\[= 100 - 90 = 10\ (Ч)\]
\[(А)\ 28\ :14 = 2 \cdot 25 = 50 \cdot 6 =\]
\[= 300 - 175 = 125 - 80 =\]
\[= 45\ (Л)\]
\[199\] | \[85\] | \[35\] | \[28\] | \[45\] | \[150\] | \[10\] | \[105\] | \[10\] |
---|---|---|---|---|---|---|---|---|
\[К\] | \[И\] | \[Б\] | \[А\] | \[Л\] | \[Ь\] | \[Ч\] | \[И\] | \[Ч\] |
\[\boxed{\mathbf{4.}}\]
\[Первый\ способ.\]
\[6 \cdot 60 + 6 \cdot 45 = 360 + 270 =\]
\[= 630\ (рублей) - стоят\ \]
\[все\ тарелки.\]
\[Второй\ способ.\]
\[6 \cdot (60 + 45) = 6 \cdot 105 =\]
\[= 630\ (рублей) - стоят\ все\ \]
\[тарелки.\]
\[Ответ:630\ рублей.\]