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
Ulleksa [173]
3 years ago
7

3x - y = 0 2x - y = 1

Mathematics
1 answer:
9966 [12]3 years ago
8 0
Answer: See below

Explanation:
Solve this system of equation using elimination method:

3x - y = 0
2x - y = 1
________
3x - y = 0
-1(2x - y = 1)
_________
3x - y = 0
-2x + y = -1
_________
X = -1

We know that x = -1 now let’s plug it in the one of the equation to find y:

2x - y = 1
2(-1) - y = 1
-2 - y = 1
-y = 3
y = -3

You might be interested in
I need help with geometry.<br> Find x.
I am Lyosha [343]

Answer:

Part 9) x=5  

Part 10) x=-9  

Step-by-step explanation:

we know that

The <u><em>Midpoint Theorem</em></u> states that: The segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side

Part 9) we know that

Point Q is the midpoint segment XY (QY=QX)

Point R is the midpoint segment XW (RW=RX)

Applying the Midpoint Theorem

RQ is parallel to WY

and

RQ=\frac{1}{2}WY  

we have

RQ=2x-3\\WY=x+9

substitute

2x-3=\frac{1}{2}(x+9)  

solve for x                  

4x-6=(x+9)          

4x-x=9+6

3x=15  

x=5  

Part 10) we know that

Point B is the midpoint segment TS (BS=BT)

Point C is the midpoint segment RS (CS=CR)

Applying the Midpoint Theorem

BC is parallel to TR

and

BC=\frac{1}{2}TR  

we have

BC=x+19\\TR=x+29

substitute

x+19=\frac{1}{2}(x+29)  

solve for x

2x+38=(x+29)  

2x-x=29-38          

x=-9  

5 0
3 years ago
Find x, y, and z<br><br> x = 39<br> x = 29<br> y = 61<br> y = 29<br> z = 61<br> z = 29
nikdorinn [45]

answer:

x = 29

y = 29

z = 61

step-by-step explanation:

all angles in a triangle must equal 180 degrees.

we were already given the angle degree of 61 degrees so we must include that in our formula to determine the degree of y.

the line in the middle already gives us two more angles because they both are 90 degrees for being a perfect quarter turn.

so to figure out y,

we must add 61+90 and then subtract the sum of that from 180.

so, 61+90 = 150 and 180-151 = 29

therefore,

we can conclude that y = 29

now, to determine the degrees of x and z we do the same thing.

we already know one angle equals 90 degrees.

180-90 = 90

that concludes that x and z must have a sum of 90.

if we use our choices,

39+61 = 100 (no)

39+29 = 68 (no)

29+61 = 90 (CORRECT)

29+29 = 28 (no)

<em>therefore, x = 29 and z = 61</em>

<em></em>

<em>so, in total :</em>

<em>x = 29</em>

<em>y = 29</em>

<em>z = 61</em>

<em></em>

<em>hope this helps :)   </em>

<em>-audrey <3 </em>

5 0
3 years ago
Antonio has $74 to spend on video games. He buys one game for $46.90 and another game for $11. How much money will he have left
Brilliant_brown [7]
He will have $16.10 left.
7 0
3 years ago
Melissa makes 8 dollars for each hour of work. Write an equation to represent her total pay p after working h hours
Alenkasestr [34]

Answer:

8 x h= p

Step-by-step explanation:

You see 8. That is the amount she is getting paid for each hour.

p is how much is paid totally after working a certain amount of hours

h represents how many hours she works.

8 dollars times the amount of  hours she works(h) would equal p, the total amount she is paid

I really hope this helped~~

3 0
3 years ago
A postcard collector has 1,230 postcards if she display them on pages that hold 6 cards each how many pages does she need
Lady bird [3.3K]
205 pages of cards :))
3 0
3 years ago
Read 2 more answers
Other questions:
  • What will be the value of
    10·1 answer
  • Help!! 10 PTS!!
    5·1 answer
  • An elevator travels 310 feet in 10 seconds. At that speed, how far can't his elevator travel in 12 seconds?
    6·1 answer
  • If you are given the graph of g, how could you
    8·2 answers
  • Lorenzo buys 3 shirts at s dollars apiece and 2 pairs of pants at p dollars a pair. What does the expression 3s+2p represents?
    9·2 answers
  • Examine parallelogram ABCD below.
    8·1 answer
  • !!!10 points + brainly!!!
    9·1 answer
  • (3x+4)-(-8-2x) simplified
    8·1 answer
  • Points and brainly mememememe
    9·2 answers
  • Help or don’t if so thank you
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!