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
Mariana [72]
3 years ago
13

Two lines, R and M, are represented by the following equations:

Mathematics
2 answers:
erma4kov [3.2K]3 years ago
6 0

Answer:  The correct option is (C) infinitely many solutions.

Step-by-step explanation:  The representations of two lines 'R' and 'M' are given by

\textup{Line R: }2x+2y=18~~~~~~~~~~~~~~~~~~~~(i)\\\textup{Line M: }x+y=9~~~~~~~~~~~~~~~~~~~~~~~~(ii)

We are to select the TRUE statement about the solution to the above set of equations.

Multiplying equation (ii) by 2, we have

\textup{Line M: }2x+2y=18~~~~~~~~~~~~~~~~~~~(iii)

From equations (i) and (iii), we can conclude that

the equations for line 'R' and line 'M' are same, and hence their graph is the same straight line as shown in the attached figure.

Therefore, each point on the lines is a solution to the given system, because both the lines intersect at each and every point that lies on the lines.

For example, (0, 9), (9, 0), (4, 5), etc. are solutions to the system.

Thus, there are infinitely many solutions.

Option (C) is correct.

Amiraneli [1.4K]3 years ago
3 0
Line R 
2x + 2y = 18
if we divide by 2 in both side
x + y = 9

Line M
x + y = 9

if x = 1, then y = 8
if x = 2, then y = 7

likewise you can find infinite pair answers for x and y
You might be interested in
I need help please?!!!!):
Daniel [21]

Answer:

4

Step-by-step explanation:

The mean of a set of data: <em>(n₁ + n₂ + n₃...)/n</em>, where n₁,₂,₃... are numbers in the set, and n is the number of numbers.

Plug in: (1 + 5 + 5 + 7 + 3 + 3 + 4)/7

Add: 28/7

Divide: 4

8 0
3 years ago
Read 2 more answers
What is the answer help
Dominik [7]

Answer:

X=50

Step-by-step explanation:

15×2=30

25×2=50

4 0
2 years ago
I need to find the product help
Licemer1 [7]
I'm assuming you mean

2\times\frac{17}{10}

Write the 2 as a fraction 2/1 and multiply.

\frac{2}{1}\times\frac{17}{10}=\frac{34}{10}=\frac{17}{5}


7 0
3 years ago
If each cube in the rectangular prism measures 1 cubic inch, what is the volume of the prism?
algol13
The answer for that is A. 40 cubic in
3 0
3 years ago
Compare and Contrast Graph y = 2x + 5 and y=-13x+5. Describe how these lines are alike and how they are different. *​
krek1111 [17]

Here are a couple I found:

<u>Similarities</u>:

  • They have the same y-intercept of (0,5).
  • They are both in slope-intercept form.

<u>Differences</u>:

  • The line of y = -13x + 5 "falls" from left to right. The line of y = 2x + 5 "rises" from left to right.
  • They have different x-intercepts. (y = 2x + 5 intersects (-\frac{5}{2}, 0) while y = -13x + 5 intersects at (\frac{5}{13}, 0)

<u></u>

<u>Explanation</u>:

Slope-intercept form is y = mx + b, and by looking at the equations, they both already fit that format, with m as their slope and b as their y-intercept. Also, since they both have a 5 as that "b," their y-intercepts are the same: (0,5).

As for differences, we can see that the coefficient in place of that "m" is positive in y = <u>2x</u> + 5 and negative in y = <u>-13x</u> + 5. Therefore, one line would rise due to their slope being positive and one would fall due to their slope being negative. They also have two different x-intercepts, which we can calculate by substituting 0 in place of the y, then isolating x.

4 0
2 years ago
Other questions:
  • Jenny's aunt wants to buy a mix of almonds and pecans as a birthday gift for Jenny. She wants to buy 6 pounds of nuts in total a
    6·2 answers
  • Last week a store sold laptops worth a total of 10,885$each laptop cost 1,555 how many laptops did the store sell last week
    6·2 answers
  • The rate of increase (R) of the radius (r) in meters per second is inversely proportional to the radius. If the radius is increa
    8·1 answer
  • How many complex roots does the equation below have? X^6+x^3+1=0
    5·2 answers
  • Plss help i dont understand :(
    11·1 answer
  • PLEASE HELP ME OUT I DONT GET THIS :(
    8·1 answer
  • The cost of electricity in a certain city is 0.08 for each of the first 300 kWh and $0.13 for each kilowatt-hour over 300 kWh. F
    7·1 answer
  • Laura's height is found to be 5/9th of Kevins height and is 39 inches tall how tall is Kevin
    14·1 answer
  • The model below can be used to find the quotient of 1/2 divided by 1/8 . What is the quotient?
    13·1 answer
  • 64% of x is 140 please help me right away and solve me x!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!