Formulate the situation as a system of linear equations. Be sure to state clearly the
meaning of each variable. Solve using the GaussJordan method. State your final answer in
terms of the original question. (If the system is inconsistent, answer INCONSIS
532015 2.2 Homework (Modeling with IJnear Equations)
MAT 120.90 2015 MODS cfw_Banner Assessments Unit 25 Assessment (covers 2.4.3  2.5.12 Results
2.2 Homework (Modeling with Linear Equations) Grade Report
Score: 62% (8 of 13 pts)
Submitted: May 3 at
3.1.1
1 pt: “statue: 75.72% “0.5 of 14 p45) 3%
resent the monthly cell phone bill for a person's phone for six randomly selected months.
L45, $38.87, $43.39, $49.26 Eh
adian, and mode phone bill.
$ 41.41 . (Round to the nearest cent as needed.)
is $ 40.
Analysis of an ARM vs. Fixed Rate Mortgages
The low initial cost of adjustablerate mortgages, or ARMs, can be very tempting to home
buyers, yet they carry a degree of uncertainty. Fixedrate mortgages offer rate and payment
security, but they can be more
1. For the linear programming problem, determine the corresponding linear system,
maximize x + 2y subject to the constraints:
3x + 2y 10
x+ y5
x0
y0
Answer
A. 3x + 2y = 10
x+ y=5
x
=0
y=0
B. 3x + 2y + t
10
x+ y
=
+u
x
=5
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1
10.1 Questions
1. A.
B.
C.
9. Balance after 3 years is 7080 Interest of 1080
15. A. 3548.74
B. 451.26
C.
Month
0
1
2
3
19. 8874.49
23. 1700 in 9 years
37. 10
43. a
Interest
0
17.74
17.83
17.92
Balance
3548.74
3566.48
3584.31
3602.23
10.2 Questions
3. 36,7
Playtime Inc. makes childrens backyard play equipment. Jungle Gym I requires 3 labourhours of assembly and 2 labourhours of testing. Jungle Gym II requires 4 labourhours of
assembly and 1 labourhours of testing. Each day there are 32 labourhours avail
MAT 230 Quantitative Analysis
SYLLABUS
Course Description:
This course introduces mathematical techniques used in business, economics, and social sciences.
Topics include mathematics of finance, systems of linear equations and inequalities, Gaussian
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