SlideShare uma empresa Scribd logo
1 de 4
Baixar para ler offline
www.provincialexam.ca | BC Math 10 Provincial Exam Practice Examples
Systems Practice Test Name: ______________________ Period: _____
1) How many solutions does this system of equations have?
2 3
2 1
y x
y x
Answer: 0
2) How many solutions does this system of equations have?
5
2 2 10
x y
y x
Answer:
3) Solve, in other words find the point of intersection of the following linear system:
3 1
2 5 3 0
y x
y x
Answer as a decimal number (two decimal places).
Answer: ( 0.09,1.27)
4) In which quadrant does the following system contain a solution?
3 1
1
1 5
2
y x
x y
Answer: Quadrant I
5) Solve for y in the following system of equations (as a decimal number):
2 1
2 4 15
x y
x y
Answer: 2.125
6) Which of the following systems has a solution of ( 2,5)?
A.
7
2 3 8
x y
y x
B.
2 1
3 2 16 0
x y
x y
C.
3 5
2 3 0
x y
x y
D.
4 0
2 5 8
x y
x y
Answer: B
7) Determine the x -value of the point of intersection for the system
represented by
2
( ) 1
3
h x x and ( ) 2z x . Answer as a decimal.
Answer: 1.5
8) Solve for y . Answer with two decimals.
2 3 8
3
x y
x y
Answer: 2.67
9) There are two types of coins. 8 small coins and 12 large coins weigh 200 grams.
4 small coins and 20 large coins weigh 300 grams. How much does a single
LARGE coin weigh? Answer to the nearest tenth of a gram.
Answer: 14.3 g
10) What value of w gives a linear system with infinite solutions?
( 2) 5x w y
3 5x y
Answer: 1
11) The graphed lines of 5x By and 2 7x By intersect at (2, 3).
What is the value of B ?
Answer: 1
12) A wedding hall rental costs $1210 for the hall plus $20 per person for food.
If each guest gives $60 cash, how many guests must attend to make a PROFIT?
Answer: 31
13) You invest a total of $2000 between two stocks. One stock earns 12% interest
and other stock earns 4% interest. You earn $160 interest on your two stocks at
the end of the year. How much did you invest in the stock that earned 12% interest?
Answer: $1000
14) A bartender mixes two alcoholic beverages. Drink A is 5% alcohol by volume.
Drink B is 40% alcohol by volume. We want to find how much of drink A is
needed to mix with drink B to make a 500 mL mixture that is 30% alcohol by volume.
Just set up the two equations (this will save you time).
Do NOT bother solving for A and B.
Answer:
500
0.05A 0.40B 500 0.30
A B
15) Two jets have a cruising speed of 450 km/h without wind. The first plane flies
for 6 hours with a tailwind. The second plane flies for 8 hours in the opposite
direction against a headwind. The second plane flies 100 km more than the first plane.
Determine two equations that could be used to solve for the wind speed, w , and
the distance travelled by the first plane, d . Just the equations are fine (save time).
Do NOT solve w and d .
Answer:
(450 )(6)
100 (450 )(8)
d w
d w
16) A canoe took 4 hours to travel 18 km with the current. On the return trip, the
canoe took 6 hours to travel the same distance against the current. When the canoe
travels with the current it travels faster than normal. How fast does the canoe travel
WITH the current? One decimal accuracy.
Answer: 4.5 km/h
17) In your sales job you are paid a fixed amount each month plus a percentage of the
sales you make. You are paid $3,000 a month when you sell $20,000 worth of
merchandise. You are paid $4,000 a month when you sell $30,000 worth of
merchandise. What is your fixed income?
Answer: $1000

Mais conteúdo relacionado

Mais procurados

05 perfect square, difference of two squares
05   perfect square, difference of two squares05   perfect square, difference of two squares
05 perfect square, difference of two squaresmajapamaya
 
Factoring the difference of two squares
Factoring the difference of two squaresFactoring the difference of two squares
Factoring the difference of two squaressalamatnicandro
 
Exam i(practice)
Exam i(practice)Exam i(practice)
Exam i(practice)PublicLeaks
 
Smu bca sem 1 winter 2014 assignments
Smu bca sem 1 winter 2014 assignmentsSmu bca sem 1 winter 2014 assignments
Smu bca sem 1 winter 2014 assignmentssmumbahelp
 
Squaring binomials
Squaring binomialsSquaring binomials
Squaring binomialsAndrés
 
1.1 ss factoring the difference of two squares
1.1 ss factoring the difference of two squares1.1 ss factoring the difference of two squares
1.1 ss factoring the difference of two squaresJessebelBautista
 
Factoring perfect-square-trinomials
Factoring perfect-square-trinomialsFactoring perfect-square-trinomials
Factoring perfect-square-trinomialsAnnalizaTenioso
 
Test yourself for JEE(Main)TP-2
Test yourself for JEE(Main)TP-2Test yourself for JEE(Main)TP-2
Test yourself for JEE(Main)TP-2Vijay Joglekar
 
Factoring difference of two squares
Factoring difference of two squaresFactoring difference of two squares
Factoring difference of two squareslaila_barrera
 
Test yourself for JEE(Main)TP-3
Test yourself for JEE(Main)TP-3Test yourself for JEE(Main)TP-3
Test yourself for JEE(Main)TP-3Vijay Joglekar
 
Factoring Perfect Square Trinomial
Factoring Perfect Square TrinomialFactoring Perfect Square Trinomial
Factoring Perfect Square TrinomialMajesty Ortiz
 
Final exam g8 2014
Final exam g8 2014Final exam g8 2014
Final exam g8 2014zeinabze
 
March 10
March 10March 10
March 10khyps13
 
Class 9 Cbse Maths Sample Paper Term 1 Model 1
Class 9 Cbse Maths Sample Paper Term 1 Model 1Class 9 Cbse Maths Sample Paper Term 1 Model 1
Class 9 Cbse Maths Sample Paper Term 1 Model 1Sunaina Rawat
 
Sem 1 bca summer 2014 solved assignments
Sem 1 bca summer 2014  solved assignmentsSem 1 bca summer 2014  solved assignments
Sem 1 bca summer 2014 solved assignmentssmumbahelp
 

Mais procurados (20)

Perfect square of Binomials
Perfect square of BinomialsPerfect square of Binomials
Perfect square of Binomials
 
05 perfect square, difference of two squares
05   perfect square, difference of two squares05   perfect square, difference of two squares
05 perfect square, difference of two squares
 
Factoring the difference of two squares
Factoring the difference of two squaresFactoring the difference of two squares
Factoring the difference of two squares
 
Exam i(practice)
Exam i(practice)Exam i(practice)
Exam i(practice)
 
3D Geometry QA 5
3D Geometry QA 53D Geometry QA 5
3D Geometry QA 5
 
Smu bca sem 1 winter 2014 assignments
Smu bca sem 1 winter 2014 assignmentsSmu bca sem 1 winter 2014 assignments
Smu bca sem 1 winter 2014 assignments
 
Squaring binomials
Squaring binomialsSquaring binomials
Squaring binomials
 
1.1 ss factoring the difference of two squares
1.1 ss factoring the difference of two squares1.1 ss factoring the difference of two squares
1.1 ss factoring the difference of two squares
 
Factoring perfect-square-trinomials
Factoring perfect-square-trinomialsFactoring perfect-square-trinomials
Factoring perfect-square-trinomials
 
Test yourself for JEE(Main)TP-2
Test yourself for JEE(Main)TP-2Test yourself for JEE(Main)TP-2
Test yourself for JEE(Main)TP-2
 
Factoring difference of two squares
Factoring difference of two squaresFactoring difference of two squares
Factoring difference of two squares
 
Test yourself for JEE(Main)TP-3
Test yourself for JEE(Main)TP-3Test yourself for JEE(Main)TP-3
Test yourself for JEE(Main)TP-3
 
4.1 matrices
4.1 matrices4.1 matrices
4.1 matrices
 
Factoring Perfect Square Trinomial
Factoring Perfect Square TrinomialFactoring Perfect Square Trinomial
Factoring Perfect Square Trinomial
 
Final exam g8 2014
Final exam g8 2014Final exam g8 2014
Final exam g8 2014
 
March 10
March 10March 10
March 10
 
Class 9 Cbse Maths Sample Paper Term 1 Model 1
Class 9 Cbse Maths Sample Paper Term 1 Model 1Class 9 Cbse Maths Sample Paper Term 1 Model 1
Class 9 Cbse Maths Sample Paper Term 1 Model 1
 
Maths test
Maths testMaths test
Maths test
 
Guess paper x
Guess paper xGuess paper x
Guess paper x
 
Sem 1 bca summer 2014 solved assignments
Sem 1 bca summer 2014  solved assignmentsSem 1 bca summer 2014  solved assignments
Sem 1 bca summer 2014 solved assignments
 

Semelhante a BC Math 10 Systems Practice Test

Final exam review sheet # 1 2015
Final exam review sheet # 1 2015Final exam review sheet # 1 2015
Final exam review sheet # 1 2015mlabuski
 
Final exam review sheet # 3 2015
Final exam review sheet # 3 2015Final exam review sheet # 3 2015
Final exam review sheet # 3 2015mlabuski
 
Aptitude testing puzzles for freshers
Aptitude testing puzzles for freshersAptitude testing puzzles for freshers
Aptitude testing puzzles for freshersSakshi Vashist
 
Guide de problem solving avec solution - préparation entretiens conseil
Guide de problem solving  avec solution - préparation entretiens conseilGuide de problem solving  avec solution - préparation entretiens conseil
Guide de problem solving avec solution - préparation entretiens conseilJocelyne Giambiaggi
 
Tcs 2011with solutions
Tcs 2011with solutionsTcs 2011with solutions
Tcs 2011with solutionsAshu0711
 
Hexaware 1
Hexaware 1Hexaware 1
Hexaware 1ncct
 

Semelhante a BC Math 10 Systems Practice Test (20)

Final exam review sheet # 1 2015
Final exam review sheet # 1 2015Final exam review sheet # 1 2015
Final exam review sheet # 1 2015
 
C H A P2008
C H A P2008C H A P2008
C H A P2008
 
Chap2008
Chap2008Chap2008
Chap2008
 
Sample 8
Sample 8Sample 8
Sample 8
 
Stat2008
Stat2008Stat2008
Stat2008
 
Letmath
LetmathLetmath
Letmath
 
Final exam review sheet # 3 2015
Final exam review sheet # 3 2015Final exam review sheet # 3 2015
Final exam review sheet # 3 2015
 
Schl2008
Schl2008Schl2008
Schl2008
 
Tcs1
Tcs1Tcs1
Tcs1
 
CAT -1999 Unsolved Paper
CAT -1999 Unsolved PaperCAT -1999 Unsolved Paper
CAT -1999 Unsolved Paper
 
State2009
State2009State2009
State2009
 
Aptitude testing puzzles for freshers
Aptitude testing puzzles for freshersAptitude testing puzzles for freshers
Aptitude testing puzzles for freshers
 
Guide de problem solving avec solution - préparation entretiens conseil
Guide de problem solving  avec solution - préparation entretiens conseilGuide de problem solving  avec solution - préparation entretiens conseil
Guide de problem solving avec solution - préparation entretiens conseil
 
Cat sample-1
Cat sample-1Cat sample-1
Cat sample-1
 
Chapter2009
Chapter2009Chapter2009
Chapter2009
 
Arith1
Arith1Arith1
Arith1
 
MathsX.pdf
MathsX.pdfMathsX.pdf
MathsX.pdf
 
Tcs 2011with solutions
Tcs 2011with solutionsTcs 2011with solutions
Tcs 2011with solutions
 
Hexaware 1
Hexaware 1Hexaware 1
Hexaware 1
 
Natl2008
Natl2008Natl2008
Natl2008
 

Último

Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...EduSkills OECD
 
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptxBasic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptxDenish Jangid
 
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...christianmathematics
 
Grant Readiness 101 TechSoup and Remy Consulting
Grant Readiness 101 TechSoup and Remy ConsultingGrant Readiness 101 TechSoup and Remy Consulting
Grant Readiness 101 TechSoup and Remy ConsultingTechSoup
 
1029 - Danh muc Sach Giao Khoa 10 . pdf
1029 -  Danh muc Sach Giao Khoa 10 . pdf1029 -  Danh muc Sach Giao Khoa 10 . pdf
1029 - Danh muc Sach Giao Khoa 10 . pdfQucHHunhnh
 
APM Welcome, APM North West Network Conference, Synergies Across Sectors
APM Welcome, APM North West Network Conference, Synergies Across SectorsAPM Welcome, APM North West Network Conference, Synergies Across Sectors
APM Welcome, APM North West Network Conference, Synergies Across SectorsAssociation for Project Management
 
Class 11th Physics NEET formula sheet pdf
Class 11th Physics NEET formula sheet pdfClass 11th Physics NEET formula sheet pdf
Class 11th Physics NEET formula sheet pdfAyushMahapatra5
 
How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17Celine George
 
Measures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SDMeasures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SDThiyagu K
 
Key note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdfKey note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdfAdmir Softic
 
Unit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptxUnit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptxVishalSingh1417
 
Unit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptxUnit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptxVishalSingh1417
 
Holdier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdfHoldier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdfagholdier
 
Z Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot GraphZ Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot GraphThiyagu K
 
ICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxAreebaZafar22
 
Gardella_PRCampaignConclusion Pitch Letter
Gardella_PRCampaignConclusion Pitch LetterGardella_PRCampaignConclusion Pitch Letter
Gardella_PRCampaignConclusion Pitch LetterMateoGardella
 
SECOND SEMESTER TOPIC COVERAGE SY 2023-2024 Trends, Networks, and Critical Th...
SECOND SEMESTER TOPIC COVERAGE SY 2023-2024 Trends, Networks, and Critical Th...SECOND SEMESTER TOPIC COVERAGE SY 2023-2024 Trends, Networks, and Critical Th...
SECOND SEMESTER TOPIC COVERAGE SY 2023-2024 Trends, Networks, and Critical Th...KokoStevan
 
fourth grading exam for kindergarten in writing
fourth grading exam for kindergarten in writingfourth grading exam for kindergarten in writing
fourth grading exam for kindergarten in writingTeacherCyreneCayanan
 

Último (20)

Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
Presentation by Andreas Schleicher Tackling the School Absenteeism Crisis 30 ...
 
Advance Mobile Application Development class 07
Advance Mobile Application Development class 07Advance Mobile Application Development class 07
Advance Mobile Application Development class 07
 
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptxBasic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
 
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
 
Grant Readiness 101 TechSoup and Remy Consulting
Grant Readiness 101 TechSoup and Remy ConsultingGrant Readiness 101 TechSoup and Remy Consulting
Grant Readiness 101 TechSoup and Remy Consulting
 
1029 - Danh muc Sach Giao Khoa 10 . pdf
1029 -  Danh muc Sach Giao Khoa 10 . pdf1029 -  Danh muc Sach Giao Khoa 10 . pdf
1029 - Danh muc Sach Giao Khoa 10 . pdf
 
APM Welcome, APM North West Network Conference, Synergies Across Sectors
APM Welcome, APM North West Network Conference, Synergies Across SectorsAPM Welcome, APM North West Network Conference, Synergies Across Sectors
APM Welcome, APM North West Network Conference, Synergies Across Sectors
 
Class 11th Physics NEET formula sheet pdf
Class 11th Physics NEET formula sheet pdfClass 11th Physics NEET formula sheet pdf
Class 11th Physics NEET formula sheet pdf
 
How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17
 
Código Creativo y Arte de Software | Unidad 1
Código Creativo y Arte de Software | Unidad 1Código Creativo y Arte de Software | Unidad 1
Código Creativo y Arte de Software | Unidad 1
 
Measures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SDMeasures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SD
 
Key note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdfKey note speaker Neum_Admir Softic_ENG.pdf
Key note speaker Neum_Admir Softic_ENG.pdf
 
Unit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptxUnit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptx
 
Unit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptxUnit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptx
 
Holdier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdfHoldier Curriculum Vitae (April 2024).pdf
Holdier Curriculum Vitae (April 2024).pdf
 
Z Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot GraphZ Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot Graph
 
ICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptxICT Role in 21st Century Education & its Challenges.pptx
ICT Role in 21st Century Education & its Challenges.pptx
 
Gardella_PRCampaignConclusion Pitch Letter
Gardella_PRCampaignConclusion Pitch LetterGardella_PRCampaignConclusion Pitch Letter
Gardella_PRCampaignConclusion Pitch Letter
 
SECOND SEMESTER TOPIC COVERAGE SY 2023-2024 Trends, Networks, and Critical Th...
SECOND SEMESTER TOPIC COVERAGE SY 2023-2024 Trends, Networks, and Critical Th...SECOND SEMESTER TOPIC COVERAGE SY 2023-2024 Trends, Networks, and Critical Th...
SECOND SEMESTER TOPIC COVERAGE SY 2023-2024 Trends, Networks, and Critical Th...
 
fourth grading exam for kindergarten in writing
fourth grading exam for kindergarten in writingfourth grading exam for kindergarten in writing
fourth grading exam for kindergarten in writing
 

BC Math 10 Systems Practice Test

  • 1. www.provincialexam.ca | BC Math 10 Provincial Exam Practice Examples Systems Practice Test Name: ______________________ Period: _____ 1) How many solutions does this system of equations have? 2 3 2 1 y x y x Answer: 0 2) How many solutions does this system of equations have? 5 2 2 10 x y y x Answer: 3) Solve, in other words find the point of intersection of the following linear system: 3 1 2 5 3 0 y x y x Answer as a decimal number (two decimal places). Answer: ( 0.09,1.27) 4) In which quadrant does the following system contain a solution? 3 1 1 1 5 2 y x x y Answer: Quadrant I 5) Solve for y in the following system of equations (as a decimal number): 2 1 2 4 15 x y x y Answer: 2.125
  • 2. 6) Which of the following systems has a solution of ( 2,5)? A. 7 2 3 8 x y y x B. 2 1 3 2 16 0 x y x y C. 3 5 2 3 0 x y x y D. 4 0 2 5 8 x y x y Answer: B 7) Determine the x -value of the point of intersection for the system represented by 2 ( ) 1 3 h x x and ( ) 2z x . Answer as a decimal. Answer: 1.5 8) Solve for y . Answer with two decimals. 2 3 8 3 x y x y Answer: 2.67 9) There are two types of coins. 8 small coins and 12 large coins weigh 200 grams. 4 small coins and 20 large coins weigh 300 grams. How much does a single LARGE coin weigh? Answer to the nearest tenth of a gram. Answer: 14.3 g
  • 3. 10) What value of w gives a linear system with infinite solutions? ( 2) 5x w y 3 5x y Answer: 1 11) The graphed lines of 5x By and 2 7x By intersect at (2, 3). What is the value of B ? Answer: 1 12) A wedding hall rental costs $1210 for the hall plus $20 per person for food. If each guest gives $60 cash, how many guests must attend to make a PROFIT? Answer: 31 13) You invest a total of $2000 between two stocks. One stock earns 12% interest and other stock earns 4% interest. You earn $160 interest on your two stocks at the end of the year. How much did you invest in the stock that earned 12% interest? Answer: $1000 14) A bartender mixes two alcoholic beverages. Drink A is 5% alcohol by volume. Drink B is 40% alcohol by volume. We want to find how much of drink A is needed to mix with drink B to make a 500 mL mixture that is 30% alcohol by volume. Just set up the two equations (this will save you time). Do NOT bother solving for A and B. Answer: 500 0.05A 0.40B 500 0.30 A B
  • 4. 15) Two jets have a cruising speed of 450 km/h without wind. The first plane flies for 6 hours with a tailwind. The second plane flies for 8 hours in the opposite direction against a headwind. The second plane flies 100 km more than the first plane. Determine two equations that could be used to solve for the wind speed, w , and the distance travelled by the first plane, d . Just the equations are fine (save time). Do NOT solve w and d . Answer: (450 )(6) 100 (450 )(8) d w d w 16) A canoe took 4 hours to travel 18 km with the current. On the return trip, the canoe took 6 hours to travel the same distance against the current. When the canoe travels with the current it travels faster than normal. How fast does the canoe travel WITH the current? One decimal accuracy. Answer: 4.5 km/h 17) In your sales job you are paid a fixed amount each month plus a percentage of the sales you make. You are paid $3,000 a month when you sell $20,000 worth of merchandise. You are paid $4,000 a month when you sell $30,000 worth of merchandise. What is your fixed income? Answer: $1000