Question 1

Solve the pair of linear equations by addition. $\begin{array} { l } 
7 x - 6 y = 18 \
5 x - 6 y = 18
\end{array}$

Accepted Answer

The answer of Solve the pair of linear equations by...

Question 2

Solve, using the substitution method, and check. $\begin{array} { c } 
7 x + 8 y + 124 = 0 \
y = 3 x
\end{array}$

Accepted Answer

A)  (7, 15) 
B)  (-4, -12) 
C)  (9, 7) 
D)  (4, -12) 
E)  (-3, -9) 
A)  (7, 15) 
B)  (-4, -12) 
C)  (9, 7) 
D)  (4, -12) 
E)  (-3, -9)

Question 3

Solve the pair of linear equations by addition. $\begin{array} { l } 
9 x - 5 y = - 45 \
3 x - 17 y = - 15
\end{array}$ If there is one common solution, select the correct ordered pair of the point of intersection. If there is no one common solution, select either parallel or coincide for the correct answer.

Accepted Answer

A)  $( - 5,0 )$ 
B)  $( 6,7 )$ 
C)  $( 6,0 )$ 
D)  The lines are parallel. 
E)  The lines coincide. 
A)  $( - 5,0 )$ 
B)  $( 6,7 )$ 
C)  $( 6,0 )$ 
D)  The lines are parallel. 
E)  The lines coincide.

Question 4

The walkway in front of an office building has a perimeter of 450 ft. If the length is four times the width, find the dimensions of the walkway.

Accepted Answer

A)  The width is 45.5 ft,
The length is 179.5 ft. 
B)  The width is 50 ft,
The length is 175 ft. 
C)  The width is 45 ft,
The length is 180 ft. 
D)  The width is 60 ft,
The length is 165 ft. 
E)  The width is 180 ft,
The length is 45 ft. 
A)  The width is 45.5 ft,
The length is 179.5 ft. 
B)  The width is 50 ft,
The length is 175 ft. 
C)  The width is 45 ft,
The length is 180 ft. 
D)  The width is 60 ft,
The length is 165 ft. 
E)  The width is 180 ft,
The length is 45 ft.

Question 5

Solve, using the substitution method, and check. $\begin{array} { c } 
3 x - 2 y = 56 \
y = - 2 x
\end{array}$

Accepted Answer

A)  (0, 0) 
B)  (8, -16) 
C)  (3, -11) 
D)  (7, -17) 
E)  (5, -10) 
A)  (0, 0) 
B)  (8, -16) 
C)  (3, -11) 
D)  (7, -17) 
E)  (5, -10)

Question 6

Solve the pair of linear equations by addition. $\begin{array} { c } 
9 x - 6 y = 27 \
6 x + y = 21
\end{array}$

Accepted Answer

The answer of Solve the pair of linear equations by...

Question 7

Solve the pair of linear equations by addition. $\begin{array} { l } 
\frac { 1 } { 5 } x - \frac { 2 } { 9 } y = 1 \
5 x - 8 y = 36
\end{array}$

Accepted Answer

The answer of Solve the pair of linear equations by...

Question 8

Solve the pair of linear equations by addition.
  $\begin{array} { l } 
5 x - 2 y = - 15 \
2 x + 4 y = - 6
\end{array}$

Accepted Answer

The answer of Solve the pair of linear equations by...

Question 9

Solve the pair of linear equations by addition. $\begin{array} { l } 
15 x + 4 y = 29 \
16 x + 5 y = 28
\end{array}$ If there is one common solution, select the correct ordered pair of the point of intersection. If there is no one common solution, select either parallel or coincide for the correct answer.

Accepted Answer

A)  $( 3 , - 4 )$ 
B)  $( 4,5 )$ 
C)  $( 4 , - 4 )$ 
D)  The lines are parallel. 
E)  The lines coincide. 
A)  $( 3 , - 4 )$ 
B)  $( 4,5 )$ 
C)  $( 4 , - 4 )$ 
D)  The lines are parallel. 
E)  The lines coincide.

Question 10

Solve the pair of linear equations by addition. $\begin{array} { l } 
7 x - 8 y = - 7 \
3 x - 19 y = - 3
\end{array}$

Accepted Answer

The answer of Solve the pair of linear equations by...

Question 11

Solve the pair of linear equations by addition. $\begin{array} { l } 
12 x + 9 y = 12 \
13 x + 10 y = 12
\end{array}$

Accepted Answer

The answer of Solve the pair of linear equations by...

Question 12

A wire 160 cm long is to be cut into two pieces so that one piece is three times as long as the other. Find the length of each piece.
Short piece: __________ cm
Long piece: __________ cm

Accepted Answer

The answer of A wire 160 cm long is to...

Question 13

Solve the pair of linear equations by addition. $\begin{array} { c } 
3 x + 4 y = - 3 \
3 x - y = 27
\end{array}$

Accepted Answer

The answer of Solve the pair of linear equations by...

Question 14

Solve the pair of linear equations by addition. $\begin{array} { c } 
- 4 x + 2 y = 10 \
- 3 x - 2 y = 4
\end{array}$

Accepted Answer

The answer of Solve the pair of linear equations by...

Solve the pair of linear equations by addition. 7x-6y=18 5x-6y=18

Solve, using the substitution method, and check. 7x+8y+124=0 y=3x

Solve the pair of linear equations by addition. 9x-5y=-45 3x-17y=-15 If there is one common solution, select the correct ordered pair of the point of intersection. If there is no one common solution, select either parallel or coincide for the correct answer.

The walkway in front of an office building has a perimeter of 450 ft. If the length is four times the width, find the dimensions of the walkway.

Solve, using the substitution method, and check. 3x-2y=56 y=-2x

Solve the pair of linear equations by addition. 9x-6y=27 6x+y=21

Solve the pair of linear equations by addition. x-y=1 5x-8y=36

Solve the pair of linear equations by addition. 5x-2y=-15 2x+4y=-6

Solve the pair of linear equations by addition. 15x+4y=29 16x+5y=28 If there is one common solution, select the correct ordered pair of the point of intersection. If there is no one common solution, select either parallel or coincide for the correct answer.

Solve the pair of linear equations by addition. 7x-8y=-7 3x-19y=-3

Solve the pair of linear equations by addition. 12x+9y=12 13x+10y=12

A wire 160 cm long is to be cut into two pieces so that one piece is three times as long as the other. Find the length of each piece. Short piece: cm Long piece: cm

Solve the pair of linear equations by addition. 3x+4y=-3 3x-y=27

Solve the pair of linear equations by addition. -4x+2y=10 -3x-2y=4

Basic Concepts

Signed Numbers and Powers of 10

The Metric System

Measurement

Polynomials: an Introduction to Algebra

Equations and Formulas

Ratio and Proportion

Graphing Linear Equations

Factoring Algebraic Expressions

Quadratic Equations

Geometry

Right Triangle Trigonometry

Trigonometry With Any Angle

Basic Statistics

Binary and Hexadecimal Numbers

Filters

Exam 9: Systems of Linear Equations

Solve the pair of linear equations by addition. 7x-6y=18 5x-6y=18

Solve, using the substitution method, and check. 7x+8y+124=0 y=3x

Solve the pair of linear equations by addition. 9x-5y=-45 3x-17y=-15 If there is one common solution, select the correct ordered pair of the point of intersection. If there is no one common solution, select either parallel or coincide for the correct answer.

The walkway in front of an office building has a perimeter of 450 ft. If the length is four times the width, find the dimensions of the walkway.

Solve, using the substitution method, and check. 3x-2y=56 y=-2x

Solve the pair of linear equations by addition. 9x-6y=27 6x+y=21

Solve the pair of linear equations by addition. x-y=1 5x-8y=36

Solve the pair of linear equations by addition. 5x-2y=-15 2x+4y=-6

Solve the pair of linear equations by addition. 15x+4y=29 16x+5y=28 If there is one common solution, select the correct ordered pair of the point of intersection. If there is no one common solution, select either parallel or coincide for the correct answer.

Solve the pair of linear equations by addition. 7x-8y=-7 3x-19y=-3

Solve the pair of linear equations by addition. 12x+9y=12 13x+10y=12

A wire 160 cm long is to be cut into two pieces so that one piece is three times as long as the other. Find the length of each piece. Short piece: __________ cm Long piece: __________ cm

Solve the pair of linear equations by addition. 3x+4y=-3 3x-y=27

Solve the pair of linear equations by addition. -4x+2y=10 -3x-2y=4

Basic Concepts

Signed Numbers and Powers of 10

The Metric System

Measurement

Polynomials: an Introduction to Algebra

Equations and Formulas

Ratio and Proportion

Graphing Linear Equations

Factoring Algebraic Expressions

Quadratic Equations

Geometry

Right Triangle Trigonometry

Trigonometry With Any Angle

Basic Statistics

Binary and Hexadecimal Numbers

Filters

A wire 160 cm long is to be cut into two pieces so that one piece is three times as long as the other. Find the length of each piece. Short piece: cm Long piece: cm