Price war a small town on a major highway has only two gas stations: station
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- Satellite Television: Two competing companies offer satellite television to a city with 100,000 households. Gold Satellite System has 25,000 subscribers and Galaxy Satellite Network has 30,000 subscribers. (The other 45,000 households do not subscribe.) The matrix shows the percent changes in satellite subscriptions each year. FromGoldFromGalaxyFromNon-subscriberPercentChangesPercentChanges{ ToGoldToGalaxyToNonsubscriber [ 0.700.150.150.200.800.150.100.050.70 ] (a) Find the number of subscribers each company will have in 1 year using matrix multiplication. Explain how you obtained your answer. (b) Find the number of subscribers each company will have in 2 years using matrix multiplication. Explain how you obtained your answer. (c) Find the number of subscribers each company will have in 3 years using matrix multiplication. Explain how you obtained your answer. (d) What is happening to the number of subscribers to each company? What is happening to the number of nonsubscribers?arrow_forwardDepression and insomnia often go hand-in-hand, and sometimes it is unclear which of the two should be the primary subject of treatment in individuals suffering from insomnia. Mendoza & Company, a national pharmaceutical firm, has positioned itself as a specialist in the production of both antidepressants and sleeping pills. Mendoza's current business model describes the following breakdown of America's approximately 50 million adults suffering from insomnia: 17% use both antidepressants and sleeping pills regularly, 24% use only antidepressants regularly, 15% use only sleeping pills regularly, and the remaining 44% use neither antidepressants nor sleeping pills regularly. A recent issue of the psychiatry journal Patterns contains a study on insomnia. In the study, 200 American adults suffering from insomnia (but otherwise chosen at random) were asked about their use of antidepressants and sleeping pills. The breakdown of their answers is given by the top row…arrow_forwardA mutual fund company offers its customers a variety of funds: a money-market fund, three different bond funds (short, intermediate, and long-term), two stock funds (moderate and high-risk), and a balanced fund. Among customers who own shares in just one fund, the percentages of customers in the different funds are as follows. Money-market Intermediate bond Short bond Need Help? Long bond Submit Answer 25% 14% 5% Read It 5% High-risk stock Moderate-risk stock Balanced A customer who owns shares in just one fund is randomly selected. (a) What is the probability that the selected individual owns shares in the balanced fund? Watch It (b) What is the probability that the individual owns shares in a bond fund? 19% (c) What is the probability that the selected individual does not own shares in a stock fund? 25% 7% Master Itarrow_forward
- Q1arrow_forward= Consider an economy with three sectors, Chemicals & Metals, Fuels & Power, and Machinery. Chemicals sells 30% of its output to Fuels and 50% to Machinery and retains the rest. Fuels sells 80% of its output to Chemicals and 10% to Machinery and retains the rest. Machinery sells 40% of its output to Chemicals and 30% to Fuels and retains the rest. Complete parts (a) through (c) below. a. Construct the exchange table for this economy. Distribution of Output from: Chemicals Fuels 0.2 0.8 0.3 0.5 Machinery 0.4 0.3 0.3 Purchased by: Chemicals Fuels Machinery 0.1 0.1 (Type integers or decimals.) b. Develop a system of equations that leads to prices at which each sector's income matches its expenses. Then write the augmented matrix that can be row reduced to find these prices. The first, second, and third columns of the matrix should correspond to Chemicals, Fuels, and Machinery, respectively. The augmented matrix is 0.8 0.8 0.4 0 0.3 -0.9 0.5 0 0.5 0.1 -0.9 0 (Type an integer or decimal for…arrow_forward= Consider an economy with three sectors, Chemicals & Metals, Fuels & Power, and Machinery. Chemicals sells 30% of its output to Fuels and 50% to Machinery and retains the rest. Fuels sells 80% of its output to Chemicals and 10% to Machinery and retains the rest. Machinery sells 40% of its output to Chemicals and 30% to Fuels and retains the rest. Complete parts (a) through (c) below. a. Construct the exchange table for this economy. Distribution of Output from: Chemicals Fuels 0.2 0.8 0.3 0.1 0.5 0.1 (Type integers or decimals.) Machinery 0.4 0.3 0.3 Purchased by: Chemicals Fuels Machinery b. Develop a system of equations that leads to prices at which each sector's income matches its expenses. Then write the augmented matrix that can be row reduced to find these prices. The first, second, and third columns of the matrix should correspond to Chemicals, Fuels, and Machinery, respectively. wrong 0.2 0.8 0.4 0 The augmented matrix is 0.3 0.1 0.3 0 0.5 0.1 0.3 0 (Type an integer or decimal…arrow_forward
- A manufacturing company makes two types of water skis, a trick ski and a slalom ski. The relevant manufacturing data are given in the table. Labor-Hours per Ski Maximum Labor-Hours Available per Day Department Fabricating Finishing Answer parts (A), (B), and (C) below. Trick Ski 6 1 Slalom Ski 4 1 (A) If the profit on a trick ski is $30 and the profit on a slalom ski is $40, how many of each type of ski should be manufactured each day to realize a maximum profit? What is the maximum profit? The maximum profit is $ The maximum occurs when trick skis and 216 42 slalom skis are produced.arrow_forwardHospital Beds. The number of hospital beds available in community hospitals is decreasing. Through advancement in care and technology, hospitals are getting more efficient. However, the aging and increasingly obese and diabetic population intensifies the need. The American Hospital Association Annual Survey, published by the American Hospital Association (AHA), gave the number of hospital beds available per 1000 people for each of the 50 states plus the District of Columbia for 2010. Following is a stem-and-leaf diagram of the data. The stems represent units and the leaves tenths (e.g., the first entry is 1.7). How many states (including the District of Columbia) had a. at least three but less than four hospital beds per 1000 people available? b. at least four and a half hospital beds per 1000 people available?arrow_forwardInvestment advisors estimated the stock market returns for four market segments: computers, financial, manufacturing, and pharmaceuticals. Annual return projections vary depending on whether the general economic conditions are improving, stable, or declining. The anticipated annual return percentages for each market segment under each economic condition are as follows: Economic Condition Market Segment Improving Stable Declining Computers 10 2. -4 Financial 8 5 -3 Manufacturing 7 4 -2 Pharmaceuticals -1 (a) Assume that an individual investor wants to select one market segment for a new investment. A forecast shows improving to declining economic conditions with the following probabilities: improving 0.2, stable 0.5, and declining 0.3. What is the preferred market segment for the investor? Computers What is the expected return percentage? Round your answer to one decimal place. Expected Return = (b) At a later date, a revised forecast shows a potential for an improvement in economic…arrow_forward
- The Lawson Fabric Mill Produces five different fabrics. Each fabric can be woven on one or more of the mill’s 36 looms. The sales department’s forecast of demand for the next month is shown in below Table 1, along with data on the selling price per yard, variable cost per yard, and purchase price per yard. The mill operates 24 hours a day and is scheduled for 30 days during the coming month. The mill has two types of looms: draw and regular. The draw looms are more versatile and can be used for all five fabrics. The regular looms can produce only three of the fabrics. The mill has a total of 36 looms: 8 are draw and 28 are regular. The rate of production for each fabric on each type of loom is given in below Table 2. The time required to change over from producing one fabric to another is negligible and does not have to be considered. The Lawson Fabric Mill satisfies all demand with either its own fabric or fabric purchased from another mill. Fabrics that cannot be woven at the…arrow_forwardJ. D. Williams, Inc. is an investment advisory firm that manages more than $120 million in funds for its numerous clients. The company uses an asset allocation model that rec- ommends the portion of each client’s portfolio to be invested in a growth stock fund, an income fund, and a money market fund. To maintain diversity in each client’s portfolio, the firm places limits on the percentage of each portfolio that may be invested in each of the three funds. General guidelines indicate that the amount invested in the growth fund must be between 20% and 40% of the total portfolio value. Similar percentages for the other two funds stipulate that between 20% and 50% of the total portfolio value must be in the income fund and that at least 30% of the total portfolio value must be in the money market fund. In addition, the company attempts to assess the risk tolerance of each client and adjust the portfolio to meet the needs of the individual investor. For example, Williams just con- tracted…arrow_forwardThe percentage of individual investors’ portfolios committed to stock depends on the state of the economy. As of April 2014, a typical portfolio consisted of cash (19%), stocks (30%), stock funds (37%), bonds (8%) and bond funds (6%). The following table reports the percentage of stocks in a typical portfolio in eight quarters of 2012 to 2013. Year Quarters Stock % 2012 1 29.8 2012 2 31 2012 3 29.9 2012 4 30.1 2013 1 32.2 2013 2 31.5 2013 3 32 2013 4 31.9 In the first quarter of 2013 the seasonal index of approximately………………. means that values of the time series are …………… by the presence of seasonal forces. A. 100.8416, depressed B. 96.8555, stimulated C. 99.1586, depressed D. 103.2465, stimulatedarrow_forward