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
Nady [450]
3 years ago
6

2x+y=3x-y= 1solve the equation ​

Mathematics
2 answers:
svetlana [45]3 years ago
4 0

Answer:

x = 4/3

y = 1/3

Step-by-step explanation:

System of equations! This is set up really well to make the second equation equal x then substitute.

x - y = 1

x = 1 + y

and then our substitution:

2 (1+y) + y = 3

and solve:

2 + 2y + y = 3

3y + 2 = 3

3y = 1

y = 1/3

And now we can substitute that value into one of our equations:

x - (1/3) = 1

x = 4/3

Next we should check by substituting these values into both of our equations:

2 (4/3) + (1/3) = 3

9 / 3 does equal 3 !

(4/3) - (1/3) does equal 1 !

Therefore, x = 4/3 , and y = 1/3

lubasha [3.4K]3 years ago
4 0
Answer: x = 4/3, y = 1/3

Explanation:

2x + y = 3
x - y = 1
=> x = 1 + y

2(1 + y) + y = 3
2 + 2y + y = 3
3y = 3-2
y = 1/3

x - 1/3 = 1
x = 3/3 + 1/3
x = 4/3
You might be interested in
Please help me answer!!! ^^
lora16 [44]
You have presented the expression, but have not shared the instructions!  So how are we going to know how to "answer?"

What you have here is the 4th root of x cubed.

You could re-write this as    x to the power (3/4):
  
   3/4
x 
8 0
3 years ago
Delthamath<br><br> Please help me!! ⚠️
aev [14]
To find the midpoint you need to find almost the mean of your x and y coordinates. To find the midpoint of your x value, add the 2 x values together (6+2=8) and then divide by how many numbers there are (2) so it should equate to 8/2=4 as your x value midpoint. Do the same for y and you get the value 5 as your y midpoint so overall it should look like...
(4,5)
4 0
3 years ago
Lola gets two 20 minutes breaks at work each day she works 5 days a week how much time does she spend on break each week?
julsineya [31]

Answer:

200 minutes / 3 hours & 20 minutes.

Step-by-step explanation:

This is quite simple.

First, since we know that Lola takes two 20 minute breaks at work each day, let's multiply 20 and 2.

20 × 2 = 40

This means she is on break for a total of 40 minutes each day.

Finally, let's take that 40 and multiply it by 5.

40 × 5 = 200

This means she spend 200 minutes (3 hours & 20 mins) on break each week.

5 0
3 years ago
An aquarium with a square base has no top. There is a metal frame. Glass costs 10 dollars/m^2 and the frame costs 9 dollars/m. T
LenKa [72]
The volume is given as V = Lwh = 20 m^3.
Since the base is a square then V = L²h = 20 m^3
Rearranging, we have L = √(20/h).

For the metal frame:
8√(20/h) + 4h ==> [8 is multiplied to √(20/h) because there are 8 sides measuring L, and 4 is multiplied to h because there are 4 sides that have measure h.]

9[8√(20/h) + 4h]
=72√(20/h) + 36h = Cost of metal frame

For the glass:
Area of one square base = L² = 20/h
Area of one rectangular side = h√(20/h) 
Area of 4 rectangular sides = 4h√(20/h) 

10[20/h + 4h√(20/h)] = Cost of glass

C = 72√(20/h) + 36h + 10[20/h + 4h√(20/h)] 

(take note, we did not multiply 10 to the terms because 10 dollars is per unit area and not unit length.)
3 0
3 years ago
How can you find the y-intercept in a table
V125BC [204]

Answer:the y-intercept will be when y=0. the answer will be the x value that corresponds with y=0.

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Round 43.586 to nearest tenth
    15·2 answers
  • A thief steals an ATM card and must randomly guess the correct three​-digit pin code from a 8​-key keypad. Repetition of digits
    13·1 answer
  • Which ordered pair is the solution to this system of equations?<br> y=2x-3 <br> y=7-0.5x
    12·1 answer
  • Please i need the correct answer, no funny business.
    9·1 answer
  • Andre has 60% of his goal of $70 saved for his trip. How much has he saved so far?
    5·1 answer
  • Solve the following equation for n: <br><br>8 + n = 16.<br><br>​
    15·2 answers
  • Help
    11·1 answer
  • What is the measure of the other acute angle? Pls explain how you got your answer
    5·1 answer
  • Please help i put brainliest
    12·1 answer
  • The best fit line is given by the equation y = 0.404x - 5.18, where y represents the height of the plant above ground level, and
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!