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Exam 4: Systems of Linear Equations

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Exam 1: The Basics237 Questionsadd course
Exam 2: Linear Equations and Inequalities247 Questionsadd course
Exam 3: Linear Equations and Inequalities in Two Variables116 Questionsadd course
Exam 4: Systems of Linear Equations86 Questionsadd course
Exam 5: Exponents and Polynomials241 Questionsadd course
Exam 6: Factoring254 Questionsadd course
Exam 7: Rational Expressions206 Questionsadd course
Exam 8: Roots and Radicals177 Questionsadd course
Exam 9: Quadratic Equations166 Questionsadd course
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Solve the system using the substitution method. Solve the system using the substitution method.

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Question 81

Mary Jo spends $2,300 to buy stock in two companies. She pays $14 a share to one of the companies and $20 a share to the other. If she ends up with a total of 130 shares, how many shares did she buy at $14 a share and how many did she buy at $20 a share?

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Question 82

Solve the system of linear equations by the elimination method. Solve the system of linear equations by the elimination method.

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Question 83

Two numbers have a sum of Two numbers have a sum of One number is more than the other. Find the numbers. One number is Two numbers have a sum of One number is more than the other. Find the numbers. more than the other. Find the numbers.

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Question 84

Solve the system by eliminating the x variable. Solve the system by eliminating the x variable.

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Question 85

Jane is deciding between two sales positions. She can work for Marcy s and receive Jane is deciding between two sales positions. She can work for Marcy s and receive per hour or for Gigi s, where she earns per hour but also receives a commission per week. The two lines in the following figure represent the money Jane will make for working at each of the jobs. From the sketch of the graphed lines, how many hours would Jane have to work to earn the same amount at each of the positions? __________ hours If Jane expects to work less than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ If Jane expects to work more than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ per hour or for Gigi s, where she earns Jane is deciding between two sales positions. She can work for Marcy s and receive per hour or for Gigi s, where she earns per hour but also receives a commission per week. The two lines in the following figure represent the money Jane will make for working at each of the jobs. From the sketch of the graphed lines, how many hours would Jane have to work to earn the same amount at each of the positions? __________ hours If Jane expects to work less than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ If Jane expects to work more than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ per hour but also receives a Jane is deciding between two sales positions. She can work for Marcy s and receive per hour or for Gigi s, where she earns per hour but also receives a commission per week. The two lines in the following figure represent the money Jane will make for working at each of the jobs. From the sketch of the graphed lines, how many hours would Jane have to work to earn the same amount at each of the positions? __________ hours If Jane expects to work less than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ If Jane expects to work more than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ commission per week. The two lines in the following figure represent the money Jane will make for working at each of the jobs. Jane is deciding between two sales positions. She can work for Marcy s and receive per hour or for Gigi s, where she earns per hour but also receives a commission per week. The two lines in the following figure represent the money Jane will make for working at each of the jobs. From the sketch of the graphed lines, how many hours would Jane have to work to earn the same amount at each of the positions? __________ hours If Jane expects to work less than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ If Jane expects to work more than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ From the sketch of the graphed lines, how many hours would Jane have to work to earn the same amount at each of the positions? __________ hours If Jane expects to work less than Jane is deciding between two sales positions. She can work for Marcy s and receive per hour or for Gigi s, where she earns per hour but also receives a commission per week. The two lines in the following figure represent the money Jane will make for working at each of the jobs. From the sketch of the graphed lines, how many hours would Jane have to work to earn the same amount at each of the positions? __________ hours If Jane expects to work less than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ If Jane expects to work more than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ hours a week, which job should she choose? a. Gigi s b. Marcy s __________ If Jane expects to work more than Jane is deciding between two sales positions. She can work for Marcy s and receive per hour or for Gigi s, where she earns per hour but also receives a commission per week. The two lines in the following figure represent the money Jane will make for working at each of the jobs. From the sketch of the graphed lines, how many hours would Jane have to work to earn the same amount at each of the positions? __________ hours If Jane expects to work less than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ If Jane expects to work more than hours a week, which job should she choose? a. Gigi s b. Marcy s __________ hours a week, which job should she choose? a. Gigi s b. Marcy s __________

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