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2020050504590820200505032437math 1324

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Mathematics
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Northwest Vista College
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Math 1324Math for Business
1. For the matrix situation mentioned below, where the 2x4 matrix A is described as:
Pay per hour for two pay levels of four trades back in 2009. (Note: Pay has increased
40% at all positions since.)
Create Matrix B, 1.40A, that reflects the pay increases.
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 
2. A contractor plans to flip two houses for a popular cable show. For the first flip, it was
determined that 15 hours of carpentry, 19 hours of welding, 12.5 hours of plumbing, and
20 hours of electrical are required. For the 2
nd
flip, the respective numbers are 21, 28, 14,
and 15.5. If C represents the matrix below and A represents the matrix from the previous
page:
Complete the matrix C below and then determine AC and discuss the ENTIRE
meaning of the resulting 2 X 2 Matrix.
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
 
 
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 
The above matrix AC can be defined as: the apprentice for flip 1 and flip 2 that
the contractor will use will cost $787.79 and $1179.96 respectively, while the
journeyman for flip 1 and flip 2 that the contractor will use will cost $1169.81 and
$1365.76 respectively.
Using matrix C, determine BC and discuss the ENTIRE meaning of the resulting
2 X 2 Matrix.

 
 
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
 
 
After a 40% increase in pay, the apprentice for flip 1 and flip 2 that the contractor
will use will cost $1420.8 and $1652.27 respectively, while the journeyman for
flip 1 and flip 2 that the contractor will use will cost $1638.33 and $1912.30
respectively.
If union agreements require the contractor to hire a journeyman and an apprentice
for each task, will $5,000 be enough to pay for all the labor? Would it have been
enough in 2009?
In 2009, the total labor would have costed the contractor $4503.32. Therefore,
$5,000 would have been enough for all labor.

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Math 1324—Math for Business 1. For the matrix situation mentioned below, where the 2x4 matrix A is described as: Pay per hour for two pay levels of four trades back in 2009. (Note: Pay has increased 40% at all positions since.) • Create Matrix B, 1.40A, that reflects the pay increases. 12.75 15.86 14.76 16.87 A=[ ] 15.60 18.07 16.89 19.08 B = 1.40A 12.75 15.86 14.76 16.87 B = 1.40 [ ] 15.60 18.07 16.89 19.08 B=[ 17.85 21.84 22.20 25.30 20.66 23.65 23.65] 26.72 2. A contractor plans to flip two houses for a popular cable show. For the first flip, it was determined that 15 hours of carpentry, 19 hours of welding, 12.5 hours of plumbing, and 20 hours of electrical are required. For the 2nd flip, the respective numbers are 21, 28, 14, and 15.5. If C represents the matrix below and A represents the matrix from the previous page: • Complete the matrix C below and then determine AC and discuss the ENTIRE meaning of the resulting 2 X 2 Matrix. 15 21 28 ] C = [ 19 12.5 14 20 15.5 12.75 AC = [ 15.60 15.86 18.07 AC = [ 14.76 16.89 15 21 16.87] [ 19 28 ] 19.08 12.5 14 20 15.5 787.79 1179.96 ] 1169.81 1365.76 The above matrix AC can be defined as: the apprentice for flip ...
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