Chapter 3 Review

1
Chapter 3 Review
There are 8 review questions with answers.
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2
1
Solve using elimination by addition.
3
1 answer
Solve using elimination by addition.
(3, -8.5)
4
2
Solve using substitution.
5
2 answer
Solve using substitution.
( 4, -4)
6
3
Solve using any method.
7
3answer
Solve using any method.
Infinite number of solutions
8
4
Solve using any method.
9
4 answer
Solve using any method.
No solution.
10
5
Solve using any method.
11
5 Answer
Solve using any method.
(3,4)
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6
A candy maker wants to mix an inexpensive candy
with an expensive candy as a sales promotion.
The expensive candy (X) is 2.00 per pound and
the inexpensive candy (Y) is 0.75 per pound. In
total they need 1000 pounds of candy. They want
to sell the mix for 1.35 per pound (1350.00 in
total). Write a system of equations and solve
for pounds of each type of candy.
13
6 Answer
x y 1000 0.75 x 2.00y
1000(1.35) Inexpensive Candy 520 lbs Expensive
Candy 480 lbs
14
7
Graph the constraints and determine the
feasible region for the system.
15
7 Answer
Graph the constraints and determine the
feasible region for the system.
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8
Given the following feasible region, maximize
the profit function P 15x - 10y.
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8 Answer
Given the following feasible region, maximize
the profit function P 15x - 10y.
(70, 10) 950
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Chapter 3 Review
End of Chapter 3 Review.