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aleksandrvk [35]
2 years ago
9

A. 6x 10y=9 B. 6x=9 C. -10y = 15 D. 2x= 15

Mathematics
2 answers:
Irina18 [472]2 years ago
8 0

Answer:

6x = 9

Step-by-step explanation:

4x-5y  = 12

2x+5y  = -3

Add the equations together

4x-5y  = 12

2x+5y  = -3

-------------------

6x + 0y = 9

6x = 9

Ksenya-84 [330]2 years ago
4 0

Answer:

B. 6x = 9

Step-by-step explanation:

4x - 5y = 12

+ 2x + 5y = -3

<u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u>

6x + 0 = 9

Hence, option B. 6x = 9 is the correct answer.

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Write an equation of the line that passes through the given point and is parallel to the given line.
saveliy_v [14]

the equation of line passing through given point parallel to y = -2x+7 is: y = -2x+9

Step-by-step explanation:

Given equation of line is:

y = -2x+7

As the given line is in slope intercept form, the coefficient of x is the slope

Let m1 be the slope of given line

m_1 = -2

Let m2 be the slope of second line then

m_2= -2

The equation of line is given by:

y= m_2x+b

Putting the value of slope

y = -2x+b

Putting the point (4,1) in the equation

y = -2x+b\\1 = -2(4)+b\\1= -8+b\\b = 1+8\\b = 9

Putting the value of b in the equation

y = -2x+9

Hence,

the equation of line passing through given point parallel to y = -2x+7 is: y = -2x+9

Keywords: Slope, intercepts

Learn more about slope at:

  • brainly.com/question/664010
  • brainly.com/question/6594923

#LearnwithBrainly

3 0
4 years ago
PLEASE HELP ME!!!!!!!!!!!!!!
melisa1 [442]

Answer:

The answer is the option D

m∠BED=135\ degrees

Step-by-step explanation:

we know that

If lines L and M are parallel

then

m∠CBE=m∠BED ------> by alternate interior angles

so

we have

m∠CBE=135\°

therefore

m∠BED=135\°

3 0
4 years ago
Read 2 more answers
A computer and printer cost a total of $939. The cost of the computer is two times the cost of a printer. Find the cost of each
nika2105 [10]

Answer: P=313 and C=626


Step-by-step explanation:

939=2x+x

939=3x

313=x Printer is 313 and computer is 626

626+313=939

3 0
4 years ago
Convert number from scientific notation to standard notation 3.9×10^-3
tigry1 [53]

Answer:

.0039

Step-by-step explanation:

6 0
3 years ago
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Solve for x using the given diagram
blagie [28]

Answer:

<h2>x = 1</h2>

Step-by-step explanation:

Look a t the picture.

The triangles on the picture are similar.

Therefore the sides are in proportion:

\dfrac{8x}{10}=\dfrac{4}{5x}              <em>cross multiply</em>

(8x)(5x)=(4)(10)

40x^2=40           <em>divide both sides by 40</em>

x^2=1\to x=\sqrt1\\\\x=1

7 0
3 years ago
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