\[\boxed{\text{Страница}\text{\ 18.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[48.\]
\[49.\]
\[в\ 40\ раз;\ \]
\[в\ 3\ раза;\]
\[в\ 60\ раз.\]
\[50.\]
\[a\] | \[800\] | \[75\] | \[180\] | \[600\] | \[84\] | \[240\] |
---|---|---|---|---|---|---|
\[b\] | \[5\] | \[15\] | \[45\] | \[200\] | \[14\] | \[80\] |
\[a\ :b\] | \[160\] | \[5\] | \[4\] | \[3\] | \[6\] | \[3\] |
\[51.\]