1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
chubhunter [2.5K]
2 years ago
10

For what value of “a”are the graphs of 5y = -2x + 10 and 3y = aX- 15 parallel

Mathematics
1 answer:
Pie2 years ago
8 0

Answer:

a = -6/5

Step-by-step explanation:

For the graphs to be parallel the graphs should have same slope(m)

So we rewrite both our equations in the slope-intercept form then compare the slope to find the value of a like this,

y=mx+b

This equation is the slope-intercept form we convert both our equations in this form firstly taking equation 1

5y=-2x+10\\\\y=\frac{-2x+10}{5} \\\\y=\frac{-2}{5}x+\frac{10}{5} \\\\y=\frac{-2}{5}x+2

so if we compare it with y = mx + b the coefficient of x is m and hence

m= -2/5 now solving for equation 2

3y=ax-15\\\\y=\frac{ax-15}{3} \\\\y=\frac{ax}{3}-\frac{15}{3}  \\\\y=\frac{a}{3}x-5\\\\

so here if we compare it with y = mx + b the coeffienct of x is a/3 so since parallel lines have same slope by the formula:

m_1=m_2

we equation both the slope to each other to find the value of a like this,

m_1=m_2\\\\\frac{-2}{5}=\frac{a}{3}\\\\-2(3)=a(5)\\\\-6=5a\\-6/5=a

so the value of a equals

a= -6/5

You might be interested in
What is the quotient and remainder of (4x^3-3x^2+x+7)/(x-2)
viva [34]

Answer:

4x^2+11x+23 r53

Step-by-step explanation:

4x^3-3x^2+x+7 / x-2

2 | 4 -3  1   7

        8 22 46

___________

    4 11 23 53

This means 4x^2+11x+23 with a remainder of 53

7 0
2 years ago
What is 1+1 im pretty sue ites 5 buut i dot kow
Natasha_Volkova [10]

Answer:

1+1 is 2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Expand 2(p+q) ??????
soldier1979 [14.2K]

Answer:

2p+2q

Step-by-step explanation:

7 0
2 years ago
Evaluate |-11| + |-7|.<br><br> -18<br> -4<br> 4<br> 18
Marta_Voda [28]

Answer:  D) 18

======================================================

Explanation:

|-11| simplifies to 11

|-7| simplifies to 7

Whatever is inside the absolute value, you just remove the negative and that's the result of that absolute value expression. It represents the distance on a number line. So for instance -11 is 11 units from 0, which is why |-11| = 11.

Overall,

|-11| + |-7| = 11 + 7 = 18

4 0
2 years ago
5. Consider the following equations.
WITCHER [35]

Answer:

Step-by-step explanation:

In y = mx + b form, the slope can be found in the m position and the y intercept can be found in the b position.

4x - 2y = -6

-2y = -4x- 6

y = (-4/-2)x -(6/-2)

y = 2x + 3....slope here is 2, and y int is 3

3x + y = 3

y = -3x + 3.....slope here is -3, and y int is 3

B. slopes are different, y intercepts are the same

3 0
3 years ago
Other questions:
  • Tickets to a school play cost $3 for each student and $8 for each parent. What would be the best choice for variable(s) when wri
    13·1 answer
  • Solve this eqation: 6(4x-(2-5y+2x)+2y)
    5·1 answer
  • Triangle question find the value
    13·1 answer
  • Jim has to travel 3 kilometers to meet his friend. From his friend's house, Jim walks to the gym, which is 100 meters farther do
    12·2 answers
  • what is the equation of the line perpendicular to y=2/3x 1 that passes through the point (12, –6)? a. 3x 2y = 24 b. 3x 2y = 6 c.
    10·1 answer
  • Hich statement best describes a graph of paired points that form a proportional relationship?
    9·1 answer
  • Pls pls help, thank you &lt;3
    12·1 answer
  • 100% of my grade plz help
    11·1 answer
  • There are 4 pizzas and 3 people.
    7·1 answer
  • 12 (X + 2) - 4x = 4( 2X + 11 ) -20<br><br>Solve for X ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!