-...-..1....-1......... .1. V ' ""'?.l"'." u..-\" - \\' 5'52\".\" .. ........ ...... u...r....___.-...-- M... m...\" -....--.. ._. I" ..... 3. (10 Points) A supermarket can employ either cashiers (labor, I} or machines (capital, k) to operate it's checkout lines. Cashiers (I) can perform checkouts at a constant rate of 2-3 customers per hour, while machines (k) performs them at a oonstant rate of '50 per hour, or: y(k,} = 153 + 60k. The oost of I is w = 15 per hour, while the oost of k is 'r' = 50 per hour. How much I and I: should the supermarket employ each hour to service its 300 customers per hour at the lowest cost