4.manufactures 37-in. high def LCD tvs in 2 separate locations, Locations I and II. The output at Location I is at most 6000 televisions/month, whereas the output at Location II is at most 5000 televisions/month. TMA is the main supplier of tvs to the Pulsar Corporation, its holding company, which has priority in having all its requirements met. In a certain month, Pulsar placed orders for 3000 and 4000 televisions to be shipped to two of its factories located in City A and City B, respectively. The shipping costs (in dollars) per television from the 2 TMA plants to the 2 Pulsar factories are as follows.       To Pulsar Factories     From TMA City A City B   Location I $7 $3   Location II $8 $9 TMA will ship x televisions from Location I to city A and y televisions from Location I to city B. Find a shipping schedule that meets the requirements of both companies while keeping costs to a minimum. (x,y)= What is the minimum cost?

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter2: Systems Of Linear Equations
Section2.4: Applications
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3.3

4.manufactures 37-in. high def LCD tvs in 2 separate locations, Locations I and II. The output at Location I is at most 6000 televisions/month, whereas the output at Location II is at most 5000 televisions/month. TMA is the main supplier of tvs to the Pulsar Corporation, its holding company, which has priority in having all its requirements met. In a certain month, Pulsar placed orders for 3000 and 4000 televisions to be shipped to two of its factories located in City A and City B, respectively. The shipping costs (in dollars) per television from the 2 TMA plants to the 2 Pulsar factories are as follows.

      To Pulsar Factories  
  From TMA City A City B
  Location I $7 $3
  Location II $8 $9


TMA will ship x televisions from Location I to city A and y televisions from Location I to city B. Find a shipping schedule that meets the requirements of both companies while keeping costs to a minimum.

(x,y)=
What is the minimum cost?
6.Solve the linear programming problem by the method of corners.
Maximize P = x + 2y    
  x  +  y  ≤ 4
  2x  +  y  ≤ 7
  x ≥ 0, y ≥ 0
The maximum is P =  at 
(x, y) = 
7.
Minimize C = 2x + 6y
subject to   x  +  y  ≥ 3
  x  +  2y  ≥ 5
  x ≥ 0, y ≥ 0
The minimum is C =   at 
(x, y) =
10.Aerobics manufactures 2 models of steppers used for aerobic exercises, x number of luxury models and y number of standard models. Manufacturing each luxury model requires 10 lb of plastic and 10 min of labor. Manufacturing each standard model requires 16 lb of plastic and 8 min of labor. The profit for each luxury model is $45, and the profit for each standard model is $30. If 6000 lb of plastic and 60 labor-hours are available for the production of the steppers per day, how many steppers of each model should Bata produce each day in order to maximize its profit?
(x, y)  = 
 
 
 
  
 

What is the optimal profit?
3
3.
Maximize P = 4x + 7y    
subject to   2x  +  3y  ≤  12
  x  +  y  ≤  5
  x ≥ 0, y ≥ 0  
The maximum is P =   at 
(x, y) =
4.
Maximize P = 6x + 7y    
subject to   2x  +  y  ≤  12
  x  −  2y  ≤  1
  x ≥ 0, y ≥ 0  
The maximum is P =  at 
(x, y) 
5
Minimize C = 5x + 6y    
subject to   x  +  3y  ≥ 15
  4x  +  y  ≥ 16
  x ≥ 0, y ≥ 0  
The minimum is C =  at 
(x, y) 
6
Maximize P = 6x + 4y    
subject to   x  +  2y  ≤ 14
  x  +  y  ≤ 8
  2x  −  3y  ≥ 6
  x ≥ 0, y ≥ 0  
The maximum is P =  at 
(x, y)
7
Minimize C = 5x + 7y    
subject to   3x  +  5y  ≥  45
  3x  +  10y  ≥  60
  x ≥ 0, y ≥ 0  
The minimum is C =  at 
(x, y) 
8
Find the maximum and minimum of Q = 2x + 6y subject to
x  +  y  ≥  4
−x  +  y  ≤  6
x  +  3y  ≤  30
    x  ≤  15
x ≥ 0, y ≥  0. 
The minimum is P =  at 
(x, y) = 
9
Manufacturing has a division that produces x model A grates and y model B grates. To produce each model A grate requires 3 lb of cast iron and 6 min of labor. To produce each model B grate requires 4 lb of cast iron and 3 min of labor. The profit for each model A grate is $1.00, and the profit for each model B grate is $3.50. Available for grate production each day are 1000 lb of cast iron and 20 labor-hours. Because of a backlog of orders for model B grates, the manager has decided to produce at least 180 model B grates per day. How many grates of each model should they produce to maximize its profits?
(x, y)  = 
 
 
 
 
 
 
 
What is the optimal profit?
$  
The maximum is P =  at 
(x, y) =
10
A manufacturer of projection TVs must ship a total of at least 1000 TVs to its two central warehouses, x to the first warehouse and y to the second warehouse. Each warehouse can hold a maximum of 750 TVs. The first warehouse already has 150 TVs on hand, whereas the second has 50 TVs on hand. It costs $8 to ship a TV to the first warehouse, and it costs $18 to ship a TV to the second warehouse. How many TVs should be shipped to each warehouse to minimize cost?
(x, y)  = 
 
 
 
 
 
 
 


What is the minimum cost?
5.1
Dav owns $20,000 worth of 10-year bonds of Ace Corporation. These bonds pay interest every 6 months at the rate of 2%/year (simple interest). How much income will Dav receive from this investment every 6 months?

How much interest will Dav receive over the life of the bonds?
2
Find the simple interest on a $1400 investment made for 5 years at an interest rate of 6%/year. What is the accumulated amount? (Round your answers to the nearest cent.)
simple interest
accumulated amount  

3

Find the effective rate corresponding to the given nominal rate. (Use a 365-day year.)

4%/year compounded semiannually

 %/year

4

Find the effective rate of interest corresponding to a nominal rate of 3.8%/year compounded annually, semiannually, quarterly, and monthly. (Round your answers to two decimal places.)

annually      %
semiannually      %
quarterly      %
monthly      %

5

Determine the simple interest rate at which $2400 will grow to $2571 in 9 months. (Round 2 decimal places.)
 %/year

6

How many days will it take for $1900 to earn $12 interest if it is deposited in a bank paying simple interest at the rate of 4%/year? (365-day. Round nearest full day.)
days
 
 
 
 
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ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning