Sharon purchases two products, x and y, with a given fixed budget. the marginal utility she receives from the last unit of x she consumes is 60 utils, and the marginal utility she receives from the last unit of y she consumes is 30 utils. the price of x is $2.00 and the price of y is $1.00. based on the equal marginal principle, these data suggest that sharon
a) is maximizing her total utility from the given fixed budget.
b) should buy more x and less y.
c) should buy more y and less x.
d) should buy less y and x.

Aproduction line has three machines a, b, and c, with reliabilities of .96, .86, and .85, respectively. the machines are arranged so that if one breaks down, the others must shut down. engineers are weighing two alternative designs for increasing the line’s reliability. plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. in either case, three machines (a, b, and c) would be used with reliabilities equal to the original three. a. compute overall system reliability under plan 1. (round your intermediate calculations and final answer to 4 decimal places.) reliability b. compute overall system reliability under plan 2. (round your intermediate calculations and final answer to 4 decimal places.) reliability c. which plan will provide the higher reliability? plan2plan1