Old Tired and Feeble Professor Mullen Company expects to purchase $90,000 of materials in July and $105,000 of materials in August. Three-quarters (75%) of all purchases are paid for in the month of purchase, and the other one-fourth (25%) are paid for in the month following the month of purchase. How much will August's cash disbursements (CDJ) for materials purchases be

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