Question 1

It is never possible to solve a system of three equations in three unknowns.

Accepted Answer

A) True 
 B)False

Question 2

If the lines determined by two linear equations meet, then the crossing point corresponds to the solution of the system of two linear equations in two unknowns.

Accepted Answer

A) True 
 B)False

Question 3

Solve the equation   for y.Round your answers to two decimal places, if necessary. ​

Accepted Answer

A)    or   
B)    or   
C)    or   
D)  None of the above. 
A)    or   
B)    or   
C)    or   
D)  None of the above.

Question 4

Solve the following system of equations by graphing.Round your answers to two decimal places.

Accepted Answer

The answer of Solve the following system of equations by...

Question 5

Solve the following system of equations.Round your answers to two decimal places.

Accepted Answer

The answer of Solve the following system of equations.Round your...

Question 6

Solve the following system of equations by graphing.   ​
Round your answers to two decimal places.

Accepted Answer

The answer of Solve the following system of equations by...

Question 7

Solve the equation   for ​y.Round your answers to two decimal places, if necessary. ​

Accepted Answer

A)    or   
B)    or   
C)    or   
D)  None of the above. 
A)    or   
B)    or   
C)    or   
D)  None of the above.

Question 8

Solve the equation   for ​y.Round your answers to two decimal places, if necessary. ​

Accepted Answer

A)    or   
B)    or   
C)    or   
D)  None of the above. 
A)    or   
B)    or   
C)    or   
D)  None of the above.

Question 9

A business pays 9.00% tax on income from New York and 6% tax on income from New Jersey.The total tax paid is $958.95, and the total income is $12292.Round your answers to the nearest cent. ​
How much income came from each state?
​

Accepted Answer

A)  $7384.00 from New York and $4908.00 from New Jersey 
B)  $7381.00 from New York and $4911.00 from New Jersey 
C)  $4908.00 from New York and $7384.00 from New Jersey 
D)  $4911.00 from New York and $7381.00 from New Jersey 
A)  $7384.00 from New York and $4908.00 from New Jersey 
B)  $7381.00 from New York and $4911.00 from New Jersey 
C)  $4908.00 from New York and $7384.00 from New Jersey 
D)  $4911.00 from New York and $7381.00 from New Jersey

Question 10

Solve the following system of equations.Round your answers to two decimal places.

Accepted Answer

The answer of Solve the following system of equations.Round your...

Question 11

Solve the following system of equations.Round your answers to two decimal places.

Accepted Answer

The answer of Solve the following system of equations.Round your...

Question 12

Solve the following system of equations.Round your answers to two decimal places.

Accepted Answer

The answer of Solve the following system of equations.Round your...

Question 13

Type A grain containing 31.00% fiber is mixed with type B grain containing 6% fiber to make 556 pounds of feed.The resulting mixture is to contain 90.86 pounds of fiber.Round your answers to two decimal places. ​
How much of each type of grain goes in the mixture?
​

Accepted Answer

A)  260.00 pounds of type A and 296.00 pounds of type B 
B)  230.00 pounds of type A and 326.00 pounds of type B 
C)  296.00 pounds of type A and 260.00 pounds of type B 
D)  326.00 pounds of type A and 230.00 pounds of type B 
A)  260.00 pounds of type A and 296.00 pounds of type B 
B)  230.00 pounds of type A and 326.00 pounds of type B 
C)  296.00 pounds of type A and 260.00 pounds of type B 
D)  326.00 pounds of type A and 230.00 pounds of type B

Question 14

We have $32.58 to spend on citrus.Lemons cost $0.73 each, and limes cost $0.69 each.We need a total of 46 pieces of citrus.Round your answers to two decimal places. ​
How many of each are bought?
​

Accepted Answer

A)  20.00 lemons and 26.00 limes 
B)  25.00 lemons and 21.00 limes 
C)  21.00 lemons and 25.00 limes 
D)  26.00 lemons and 20.00 limes 
A)  20.00 lemons and 26.00 limes 
B)  25.00 lemons and 21.00 limes 
C)  21.00 lemons and 25.00 limes 
D)  26.00 lemons and 20.00 limes

Question 15

Solve the system of equations   ​ Round your answers to two decimal places.
​

Accepted Answer

A)    and   
B)    and   
C)    and   
D)    and   
A)    and   
B)    and   
C)    and   
D)    and

Question 16

We have $16.12 to spend on vegetable plants for our garden.Tomato plants cost $0.88 each, and pepper plants cost $0.36 each.There is space in the garden for 26 plants.Round your answers to two decimal places. ​
How many of each are bought?
​

Accepted Answer

A)  10.00 tomatoes and 16.00 peppers 
B)  13.00 tomatoes and 16.00 peppers 
C)  16.00 tomatoes and 10.00 peppers 
D)  13.00 tomatoes and 13.00 peppers 
A)  10.00 tomatoes and 16.00 peppers 
B)  13.00 tomatoes and 16.00 peppers 
C)  16.00 tomatoes and 10.00 peppers 
D)  13.00 tomatoes and 13.00 peppers

Question 17

Solve the following system of equations.Round your answers to two decimal places.

Accepted Answer

The answer of Solve the following system of equations.Round your...

Question 18

Solve the following system of equations.Round your answers to two decimal places.

Accepted Answer

The answer of Solve the following system of equations.Round your...

Question 19

There is no solution of a system of two linear equations in two unknowns if the graphs of the equations are parallel lines.

Accepted Answer

A) True 
 B)False

Question 20

Solve the equation   for ​y.Round your answers to two decimal places. ​

Accepted Answer

A)    
B)    
C)    
D)  None of the above. 
A)    
B)    
C)    
D)  None of the above.

Exam 15: Systems of Equations

It is never possible to solve a system of three equations in three unknowns.

If the lines determined by two linear equations meet, then the crossing point corresponds to the solution of the system of two linear equations in two unknowns.

Solve the equation for y.Round your answers to two decimal places, if necessary. ​

Solve the following system of equations by graphing.Round your answers to two decimal places.

Solve the following system of equations.Round your answers to two decimal places.

Solve the following system of equations by graphing. ​ Round your answers to two decimal places.

Solve the equation for ​y.Round your answers to two decimal places, if necessary. ​

Solve the equation for ​y.Round your answers to two decimal places, if necessary. ​

A business pays 9.00% tax on income from New York and 6% tax on income from New Jersey.The total tax paid is $958.95, and the total income is $12292.Round your answers to the nearest cent. ​ How much income came from each state? ​

Solve the following system of equations.Round your answers to two decimal places.

Solve the following system of equations.Round your answers to two decimal places.

Solve the following system of equations.Round your answers to two decimal places.

Type A grain containing 31.00% fiber is mixed with type B grain containing 6% fiber to make 556 pounds of feed.The resulting mixture is to contain 90.86 pounds of fiber.Round your answers to two decimal places. ​ How much of each type of grain goes in the mixture? ​

We have $32.58 to spend on citrus.Lemons cost $0.73 each, and limes cost $0.69 each.We need a total of 46 pieces of citrus.Round your answers to two decimal places. ​ How many of each are bought? ​

Solve the system of equations ​ Round your answers to two decimal places. ​

We have $16.12 to spend on vegetable plants for our garden.Tomato plants cost $0.88 each, and pepper plants cost $0.36 each.There is space in the garden for 26 plants.Round your answers to two decimal places. ​ How many of each are bought? ​

Solve the following system of equations.Round your answers to two decimal places.

Solve the following system of equations.Round your answers to two decimal places.

There is no solution of a system of two linear equations in two unknowns if the graphs of the equations are parallel lines.

Solve the equation for ​y.Round your answers to two decimal places. ​

Functions Given by Formulas

Functions Given by TableChas

Functions Given by Graphs

Functions Given by Words

Table and Trends

Graphs

Solving Linear Equations

Solving Nonlinear Equations

Inequalities

Optimization

The Geometry of Lines

Linear Functions

Modeling Data with Linear Functions

Linear Regression

Exponential Growth and Decay

Constant Percentage Change

Modeling Exponential Data

Modeling Nearly Exponential Data

Logarithmic Functions

Logistic Functions

Power Functions

Modeling Data with Power Functions

Combining and Decomposing Functions

Quadratic Functions

Higher Degree Polynomials and Rational Functions

Velocity

Rates of Change for Other Functions

Estimating Rates of Change

Equations of Change Linear and Exponential Functions

Equations of Change Graphical Solutions

Filters

Solve the equation for y.Round your answers to two decimal places, if necessary.

Solve the following system of equations by graphing. Round your answers to two decimal places.

Solve the equation for y.Round your answers to two decimal places, if necessary.

Solve the equation for y.Round your answers to two decimal places, if necessary.

A business pays 9.00% tax on income from New York and 6% tax on income from New Jersey.The total tax paid is $958.95, and the total income is $12292.Round your answers to the nearest cent. How much income came from each state?

Type A grain containing 31.00% fiber is mixed with type B grain containing 6% fiber to make 556 pounds of feed.The resulting mixture is to contain 90.86 pounds of fiber.Round your answers to two decimal places. How much of each type of grain goes in the mixture?

We have $32.58 to spend on citrus.Lemons cost $0.73 each, and limes cost $0.69 each.We need a total of 46 pieces of citrus.Round your answers to two decimal places. How many of each are bought?

Solve the system of equations Round your answers to two decimal places.

We have $16.12 to spend on vegetable plants for our garden.Tomato plants cost $0.88 each, and pepper plants cost $0.36 each.There is space in the garden for 26 plants.Round your answers to two decimal places. How many of each are bought?

Solve the equation for y.Round your answers to two decimal places.