Rational Equations Answers

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21
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What is the solution to the equation ?

Question illustration
A
h = eleven-thirds
Option A
B
h = 5
Option B
C
h = 7
Option C
D
h = twenty-one-halves
Option D
22
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What are the solutions to the equation ?

Question illustration
A
w = –6 and w = –2
B
w = 0, w = 2, and w = 6
C
w = 0 and w =
Option C
D
w = 2 and w = 6
23

A contractor has two choices for billing a completed job. · $500 flat rate, regardless of the number of hours worked· $20 per hour workedThe graph shows the relationship between pay per hour and number of hours worked for both scenarios. What is the solution to this system of equations, and what does it mean to the contractor?

Question illustration
A
The solution (0, 20) tells the contractor the minimum amount that can be charged.
B
The solution (0, 500) tells the contractor the maximum amount that can be charged.
C
The solution (25, 20) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.
D
The solution (20, 25) tells the contractor the number of hours on a job where the hourly rate is the same for both billing options.
24

What is the solution of ?

Question illustration
A
y = –4
B
y = –2
C
y = 4
D
y = 6
25

Which solution to the equation is extraneous?

Question illustration
A
x = 1 and x = –4
B
neither x = 1 or x = –4
C
x = 1
D
x = –4
26

Consider the graph showing two functions. Which answer can be used to find the solution to the system of equations?

Question illustration
A
mc030-2.jpg
Option A
B
mc030-3.jpg
Option B
C
mc030-4.jpg
Option C
D
mc030-5.jpg
Option D

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