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Nutka1998 [239]
3 years ago
10

A person-hour is a unit of measure representing one person working for one hour. A construction foreman estimates that it will t

ake 2880 person-hours to build a new library. If 12 workers are scheduled to work on the project at the same time how many hours will it take to complete the project?
Mathematics
1 answer:
aliya0001 [1]3 years ago
6 0
We need 2880 person-hours and we have 12 people.

When we divide the work between them: 2880/12 = 240 hours required to complete.
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Donna de paul is raising money for the homeless. She discovers that each church group requires 2 hours of let her writing and 1
Salsk061 [2.6K]

Answer:

x  =  7

y  =  3

z (max)  =  4950/3  =  1650

Step-by-step explanation:

Let call  

x numbers of church goup and

y numbers of Union Local

Then  

First contraint

2*x + 2*y ≤ 20

Second one

1*x + 3*y ≤ 16

Objective Function

z = 150*x + 200*y

Then the system is

z = 150*x + 200*y To maximize

Subject to:

2*x + 2*y ≤ 20

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x ≥ 0 y ≥ 0

We will solve by using the Simplex method

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First Table

z           x          y          s₁           s₂          Cte

1        -150    -200       0            0     =      0

0          2         2           1            0     =    20

0          1          3          0            1      =     16

First iteration:

Column pivot   ( y column ) row pivot (third row) pivot 3

Second table

z           x                y          s₁           s₂                Cte

1       -250/3           0          0         200/3    =    3200/3

0      - 4/3               0          -1           2/3       =    -20/3

0         1/3               1            0           1/3       =    -20/3

Second iteration:

Column pivot  ( x column ) row pivot  (second row)  pivot  -4/3

Third table

z           x                y          s₁           s₂                Cte

1            0               0      750/12    700/6    =   4950/3

0            1                0        3/4          -1/2     =    7

0            0                1         -1/4          1/2     =  9/3

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Inequality

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-Expand

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