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
user100 [1]
3 years ago
6

How many solutions does this linear system have?

Mathematics
1 answer:
Tanya [424]3 years ago
8 0

Answer:

B (2.5, 0)

Step-by-step explanation:

2x - y = 5 (multiply all by 4)

8x- 4y = 20

-8x - 4y = - 20

eliminate the 4y

8x- 4y = 20

-8x - 4y = - 20

-------------------- –

16x = 40

x = 40/16 = 2.5

now we substitute x with 2.5

2x - y = 5

2(2.5) - y = 5

y = 0

You might be interested in
Write the equation for a line perpendicular to y=-3x+18 that goes through the point (-12,6)
Hatshy [7]

Answer:

y=\frac{1}{3} x -14

Step-by-step explanation:

The equation of the line you will find should be in the form y =mx+c , where m is the gradient and c is the y intercept.

The gradient of a line that is perpendicular to a line [of a known gradient] is the negative reciprocal of the gradient of the first. i.e. if a is the known gradient and the perpendicular gradient is b, ab = -1. Therefore the -3b=-1 and b= 1/3

you can now write y = mx +c as y = 1/3x +c

As you have been given a coordinate, you can input these values into y= 1/3x + c

-12 = 1/3(6) +c

-12 - 2 = c

c = -14

hence the equation of the line is y= 1/3x -14

5 0
3 years ago
Julio invested $2,000 in a simple interest account for 3 years.She had earned $150 in interest by the end. What is the simple in
german
The formula is
R=I/pt
R interest rate?
I interest earned 150
P principle 2000
T time 3 years
R=150÷(2,000×3)
R=0.025 × 100
R=2.5%

Hope it helps!
4 0
3 years ago
Read 2 more answers
1/2 +2/3=?<br> What's the answer?
11111nata11111 [884]
1\frac{1}{6}
7 0
3 years ago
Read 2 more answers
Which one is &gt; greater or &lt; less than or = equal to?? 6+√8____√6+8​
brilliants [131]

\huge\boxed{\sqrt{6}+8\;is\;greater\;than \;6+\sqrt{8}  }

6+\sqrt[]{8} =8.82\\\sqrt{6}+8=10.44\\\\\boxed{Therefore, \sqrt{6}+8\;is\;greater\;than\;6+\sqrt{8}. }

4 0
3 years ago
The area of the base of a prism is 21 cm2. The perimeter of the base is 20 cm. The height of the prism is 8 cm.
mart [117]
The lateral area of the prism equals to height * perimeter of the base. So the lateral area is 160 cm2. And the surface area of the prism equals to the area of the base*2+the lateral area= 202 cm2.
7 0
3 years ago
Other questions:
  • A sprinkler rotates 45 degrees every 15 seconds. How long does it take the sprinkler to rotate 360
    7·1 answer
  • A freshly-planted sapling is braced by 3 cables attached to a collar secured to the sapling 8 feet up the trunk. each cable is s
    6·1 answer
  • Isaac drinks 8 glasses of water each day. He says he will drink 2920 glasses of water in a year that has 365 days. Is the answer
    11·1 answer
  • James estimated the total cost of groceries to be $50. The actual cost is$65. What is the percent error. Round to nearest whole
    15·1 answer
  • I need help i will give brainlyest to who ever just tells me the answers with a small explanations ​
    10·2 answers
  • What is the value of the next term of the sequence?
    7·1 answer
  • Pleassseeeeee help pleaseeeeeeeeeeeee help ​
    9·1 answer
  • The sum of two numbers is −21. One number is 55 less than the other. Find the numbers.
    15·1 answer
  • H3LP HELP PLZ...... . . . ..
    10·1 answer
  • The average time it takes a certain brand of ibuprofen to start working is 25 minutes, with a standard deviation of 13 minutes,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!