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If the price of petrol increases by by what percent should mr brown reduce his consumption of petrol so

 
 

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1.An electronics dealer offers a discount of 10% on the Marked price of Electronics. He still makes a profit of ...

profit of 20%. If his gain on the sale of one electronic item is rupees 4500 find the Marked price of the electronic item.
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2.(1) The claim by a weight loss Company is that on average, the client will lose 10 pounds over ...

first 2 weeks. 50 people who joined the programme are sampled, their weight loss is 9 pounds with a standard deviation of 2.8 pounds. Can we conclude at the .05 level that a person joining the programme will lose less than 10 pounds? (2) The following is a random sample of 90-day futures prices in dollars for 1 troy oz. of silver from The Wall Street Journal issues in May and June of 1997: 4.74, 4.77, 4.87, 4.91, 4.83, 4.72, 4.92, 4.86, 4.97, 4.71, 4.90, 4.93, 4.75, 4.88, 4.79, 4.83, 4.89. Required: a. Calculate the mean b. Median c. Standard deviation of the 90-day future price of silver data (3) A mining company needs to estimate the average amount of copper ore per ton mined. A random sample of 50 tons gives a sample mean of 146,75 pounds. The population standard deviation is assumed to be 35.2 pounds. Required: a. Give a 95% confidence interval for the average amount of copper in the population of tons mined. b. Give a 90% confidence interval for the average amount of coper per ton c. Give a 99% confidence interval for the average amount of coper per ton (4) An e-commerce Website gets 2,385 visitors on a particular day. Among these, 1790 visitors explore the products by looking at more pages at the site. Among these 1790 visitors who explore the products, 387 make a purchase. Required: a. If a visitor chosen at random from all those who visited the site, what is the probability that the visitor explored the products b. If a visitor is chosen at random from all those who visited the site, what is the probability that the visitor made a purchase. c. If a visitor is chosen at random from all those who explored the products, what is the probability that the visitor made a purchase. d. Which of the preceding three probabilities is relevant to the design of the home page that leads to product page.
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3.I would like help with this math question: A store decides to put summer clothes on sale due to change of ...

nge of season. If a 25% discount is applied to the clothes, the store is going to lose $25 per item. If a 10% discount is applied, the store is still going to gain $20 per item. Determine the original tag price of the item. Tax is not involved in this question. (Hint: How would you express the price of an item after 25% discount if the original price is ? What about after 10% discount? What is the connection between the two discounted prices?)
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4.1. A leg of lamb cost $14.88 per kilogram before cooking and the percentage of yield is 83% what is ...

the cost per kilogram of the edible of the lamb Answer with 2 decimal place 2. A beef tenderloin costs $34.17 per kilogram before trimming and the percentage of yield is 80%. What is the cost per kilogram of the usable portion of the beef tenderloin? (Answer with 2 decimal places) 3. The cost of a portion of roast sirloin of beef with potatoes and vegetables is $4.70. If we desire a 41% food cost, what should the menu price be? Round your answer to the nearest penny. (Answer with 2 decimal places) 4. The cost of a portion of grilled halibut with boiled potatoes & vegetables is $4.69. If we desire a 27% food cost, what should the menu price be? Round your answer to the nearest penny. (Answer with 2 decimal places) 5. The cost of a caesar salad is $2.38. If we desire a 31% food cost, what should the menu price be? Round your answer to the nearest penny. (Answer with 2 decimal places) 6. The cost of a pulled pork sandwich with coleslaw and fries is $3.14. If we desire a 37% food cost, what should the menu price be? Round your answer to the nearest penny. (Answer with 2 decimal places) 7. The cost of a portion of deep fried chicken with corn fritters and fries is $4.55. If we set a menu price of $15.75, what would the food cost percentage be? (Answer with 2 decimal places) 8. The cost of a veal piccata complete with penne pomodoro & vegetables is $6.03. If we set a menu price of $18.50, what would the food cost percentage be? (Answer with 2 decimal places) 9. The cost of a portion of beef goulash complete with spaetzle and vegetables is $5.82. If we set a menu price of $15.50, what would the food cost percentage be? (Answer with 2 decimal places)
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5.The unit price of market goods is $1. Each person has 8 hours to work each day. Another couple, Sylvan and ...

van and Alex, have the same productivities: Sylvan is identical to Rajan, while Alex and Esther are identical. Esther and Rajan both engage in market work. Sylvan works full time at home, so only Alex works in the market. a) Given this information, which couple has the higher opportunity cost of home produced goods? Explain how you determined this. You can add a diagram if that helps, but you are not required to include one. b) Can you determine which couple has the higher utility? Explain why or why not. Suppose now that value of market production for both Alex and Esther increased to $12/per hour. c) Explain the change in the household joint production possibility frontier generated by this change. d) Explain what would happen to each couple’s choice of both household and market produced goods, using an analysis by means of income and substitution effects. e) What changes in time allocation for each couple that would be necessary to produce and consume this new bundle? Briefly explain your reasoning.
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6.You make very good pizzas, so you decide to sell your pizzas on campus. Since the set up for making ...

pizza is already available to you, the only cost involved is that of making the pizza, which you calculate to be $ 5 per pizza. a. What is the cost function? If 10 pizzas are available in a day, the market offers a price of $ 11 per pizza. If 50 pizzas are available in a day, the market offers a price of $ 7 per pizza. b. Assuming a linear relationship between price and quantity, find the price that the market offers as a function of the number of pizzas available. You start selling the pizzas. c. What is revenue as a function of the quantity you sell? What is the profit function? d. What quantity will maximize your profit? Call it q ∗ 1. What is the maximum profit? e. If somebody is already supplying 5 pizzas every day, What is the maximum profit that you can make?
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7.How much would a consumer pay for a​ T-shirt with a list price of ​$ 10 if the purchase was ...

in a province with a PST rate of ​%? Assume that the PST is applied as a percent of the retail price. Also, assume that a GST of ​% applies to this purchase. The consumer would pay ​=
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8.Suppose that Wegboys has a supermarket with a downward sloping demand curve in Pilgrim City. It purchases frozen turkeys ...

chases frozen turkeys at a constant wholesale price of $1/turkey, which is its full marginal cost for supplying turkeys. During July, only a small number of wealthy people are interested in buying turkeys in Pilgrim. Their demand curve is P = 10 – .02 Q, where P is Wegboys’ retail price for turkeys during the month and Q is the quantity of turkeys purchased. The demand curve for these wealthy people is constant – it is the same curve in both November and July. During November, a large number of less wealthy people enter the market to purchase turkeys for Thanksgiving. Their demand curve for Wegboys’ turkeys is P = 4 – .0005Q. In other months of the year, they do not purchase turkeys at any price. a. (5 points) What price should Wegboys charge in July to maximize its profits? Calculate its profits from turkey sales. b. (5 points) Demonstrate that Wegboys can earn a higher profit if it lowers its retail price for turkeys during November (you can do this without finding the optimal price). Explain the basic economic intuition.
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1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

mathematicsalgebra Physics