Consider the project described by the digraph shown in Fig. 8-39, and assume that you are to schedule this project using
a. Use the decreasing-time algorithm to schedule the project. Show the timeline for the project and finishing time
b. Find an optimal schedule. (Hint:
c. Use the relative error formula
Figure 8-39
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Chapter 8 Solutions
Excursions In Modern Mathematics, 9th Edition
- Suppose one canoe rents for 40,and2 is taken off the price for each additional canoe rented by a ground. What size group gives the most income? Assume that there are 20 canoes available.arrow_forwardThe O'Neill Shoe Manufacturing Company will produce a special-style shoe if the order size is large enough to provide a reasonable profit. For each special-style order, the company incurs a fixed cost of $1200 for the production setup. The variable cost is $20 per pair, and each pair sells for $30. Let x indicate the number of pairs of shoes produced. Develop a mathematical model for the total cost of producing x pairs of shoes. Express your answer in terms of x.TC = Let P indicate the total profit. Develop a mathematical model for the total profit realized from an order for x pairs of shoes. Express your answer in terms of x.P = How large must the shoe order be before O'Neill will break even? Round your answer to the nearest whole number.x =arrow_forwardmi faster than the other. If the two buses are 300 miles apart h Two buses leave station at the same time and travel in opposite directions. One bus travels 8 after 2 hours, what is the rate of each bus? Note that the ALEKS graphing calculator can be used to make computations easier. Rate of the faster bus: Rate of the slower bus: Eblanation Check O 2020 McGraw H Education. All Rights Reserved Tems of Use Privacy Accessbility 23 24 2 3 5 6. 8. 9 Q E R. Y U A F G H. K J V olt alt option command command option Narrow_forward
- A building contains 1000 lightbulbs. Each bulb lasts at most five months. The company maintaining the building is trying to decide whether it is worthwhile to practice a “group replacement” policy. Under a group replacement policy, all bulbs are replaced every T months (where T is to be determined). Also, bulbs are replaced when they burn out. Assume that it costs $0.05 to replace each bulb during a group replacement and $0.20 to replace each burned-out bulb if it is replaced individually. How would you use simulation to determine whether a group replacement policy is worthwhile?arrow_forwardI Example 12.8. A firm uses milling machines, grinding machines and lathes to pro- duce two motor parts. The machining times required for each part, the machining times avail- able on different machines and the profit on each motor part are given below : .Machining time reqd. for the motor part (mts) Max. time. available per week (minutes) Type of machine I II Milling machines Grinding machines Lathes Profit/unit (Rs.) 10 4 2,000 3 2 900 6 12 3,000 100 40 Determine the number of parts I and II to be manufactured per week to maximize the profit.arrow_forward
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