[tex]x-\ amount\ of\ candy\ which\ cost\ 5,45\$\\\\y-\ amount\ of\ candy\ which\ cost\ 7,33\$\\\\ 7,33*y+11*5,45=6,14(11+y)\\\\
7,33y+59,95=67,54+6,14y\ \ \ \ | subtract\ 6,14y\\\\
1,19y=67,54-59,95\\\\
1,19y=7,59\ \ \ \ | divide\ by\ 1,19\\\\y=6,38\ pound\\\\
6,38\ pounds\ should\ be\ mixed\ with\ those\ wich\ cost\ 5,45.[/tex]