Question 1

Solve the equation. If impossible, write no solution.

Accepted Answer

The answer of Solve the equation. If impossible, write no...

Question 2

Solve the inequality using the definition of absolute value. If impossible, write no solution .

Accepted Answer

The answer of Solve the inequality using the definition of...

Question 3

Solve the system.  If the system is dependent or inconsistent, indicate this.

Accepted Answer

The answer of Solve the system.  If the system...

Question 4

Solve the system.  If the system is dependent or inconsistent, indicate this.

Accepted Answer

The answer of Solve the system.  If the system...

Question 5

For the figure below, find a system of inequalities that describes the shaded region.

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 6

Solve the equation. If impossible, write no solution.

Accepted Answer

The answer of Solve the equation. If impossible, write no...

Question 7

Solve the equation. If impossible, write no solution.

Accepted Answer

The answer of Solve the equation. If impossible, write no...

Question 8

Solve the following system by the addition method.  If the system is dependent or inconsistent, indicate this.

Accepted Answer

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

Question 9

One number is 3 more than twice another. The sum of the numbers is 12. Find the two numbers.

Accepted Answer

The answer of One number is 3 more than twice...

Question 10

Solve the following system by the addition method.  If the system is dependent or inconsistent, indicate this.

Accepted Answer

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

Question 11

Solve the inequality and graph the solution.

Accepted Answer

A)   
B)   
C)   
D)   
E)  none of these

Question 12

Solve the system.  If the system is dependent or inconsistent, indicate this.

Accepted Answer

The answer of Solve the system.  If the system...

Question 13

Paul mixes nuts worth $1.45 per pound with oats worth $1.35 per pound to get 27 pounds of trail mix worth $1.40 per pound. How many pounds of nuts and how many pounds of oats did he use? __________ lbs nuts, __________ lbs oats

Accepted Answer

The answer of Paul mixes nuts worth $1.45 per pound...

Question 14

An airplane covers a distance of 1,200 miles in 3 hours when it flies with the wind and  hours when it flies against the wind. What is the speed of the plane in still air? __________ miles per hour

Accepted Answer

The answer of An airplane covers a distance of 1,200...

Question 15

In the following diagram of an electrical circuit, x , y , and z represent the amount of current (in amperes) flowing across the 10-ohm, 25-ohm, and 15-ohm resistors, respectively.  The system of equations used to find the three currents, x , y , and z is  Solve the system for all variables. __________ amp across the 10-ohm resistor __________ amp across the 25-ohm resistor __________ amp across the 15-ohm resistor

Accepted Answer

The answer of In the following diagram of an electrical...

Question 16

Solve the inequality for the indicated variable.

Accepted Answer

The answer of Solve the inequality for the indicated variable....

Question 17

Simplify each side first, then solve the inequality. Write your answer with interval notation.

Accepted Answer

The answer of Simplify each side first, then solve the...

Question 18

Solve the equation.

Accepted Answer

A)  x = 1, x = 9 
B)  x = 1, x = 3 
C)  x = 9, x = - 9 
D)  x = 1, x = 9, x = - 9 
E)  No solution

Question 19

Solve the system.

Accepted Answer

A)   
B)   
C)   
D)  The system is inconsistent 
E)  The system is dependent

Question 20

Solve the equation.

Accepted Answer

A)  x = 0, x = 2 
B)  x = 0, x = 2, x = - 2 
C)  x = 0, x = - 2 
D)  x = 0 
E)  x = 2

Exam 7: Review of Solving Equations

Solve the equation. If impossible, write no solution.

Solve the inequality using the definition of absolute value. If impossible, write no solution .

Solve the system. If the system is dependent or inconsistent, indicate this.

Solve the system. If the system is dependent or inconsistent, indicate this.

For the figure below, find a system of inequalities that describes the shaded region.

Solve the equation. If impossible, write no solution.

Solve the equation. If impossible, write no solution.

Solve the following system by the addition method. If the system is dependent or inconsistent, indicate this.

One number is 3 more than twice another. The sum of the numbers is 12. Find the two numbers.

Solve the following system by the addition method. If the system is dependent or inconsistent, indicate this.

Solve the inequality and graph the solution.

Solve the system. If the system is dependent or inconsistent, indicate this.

Paul mixes nuts worth $1.45 per pound with oats worth $1.35 per pound to get 27 pounds of trail mix worth $1.40 per pound. How many pounds of nuts and how many pounds of oats did he use? lbs nuts, lbs oats

An airplane covers a distance of 1,200 miles in 3 hours when it flies with the wind and hours when it flies against the wind. What is the speed of the plane in still air? __________ miles per hour

Solve the inequality for the indicated variable.

Simplify each side first, then solve the inequality. Write your answer with interval notation.

Solve the equation.

Solve the system.

Solve the equation.