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
stiks02 [169]
3 years ago
5

4x - y = -7 -8x + 4y = 12 Elimination

Mathematics
1 answer:
Viktor [21]3 years ago
8 0

Answer:

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

Step-by-step explanation:

4x - y = -7: 8x-2y=-14

8x-2y=-14

-8x + 4y = 12

add these two:

2y=-2

y=-1

plug in the y:

-8x-4=12

-8x=16

x=-2

You might be interested in
A bead is formed by drilling a cylindrical hole of 2mm diameter through a sphere with an 8mm diameter. Estimate the volume of th
nydimaria [60]
The bead is in a cylindrical shape and the formula for solving the volume of a cylinder is V=pi*r²*h where "r" is the radius, "h" for the height.
We have given values such as:
r=diameter/2 = 2/2 = 1mm
h= 8mm
Solving for the volume, we have:
V=3.14*1²*8
V=24.12 mm²

6 0
3 years ago
Find the measure of the angle formed by the hands of a clock when it is 7:00 (the angle formed between 7 to 12, clockwise).
aev [14]
The answer you are looking for is an obtuse so it would be more than 90 degrees. may i have brainlest
6 0
3 years ago
Functions quiz on khan. G(-4)=
kherson [118]
-4g is what I got if ur evaluating
If it’s something about slope I got -4
5 0
3 years ago
How does three digit division works
ludmilkaskok [199]
Just divide as you normally would but 1 or 2 numbers at a time
8 0
3 years ago
Read 2 more answers
Please help & solve for x thank you!
vovikov84 [41]

9514 1404 393

Answer:

  x = 23.1

Step-by-step explanation:

The parallel lines make the left segments proportional to the right segments. This lets us write the equation ...

  x/14 = 33/20

Multiplying by 14, we get ...

  x = 14(33/20) = 7(33/10) = 23.1

4 0
2 years ago
Other questions:
  • How to find the quotient
    12·2 answers
  • 12% of 72 is what number??
    13·2 answers
  • What would the unit rates be for a man who walked 20 mi in 5 h?
    10·2 answers
  • 500 students went on a picnic trip. 10 students travelled in each car. Find out how many cars were used for the picnic trip?
    7·1 answer
  • Thanks!! Can you please prove your answer! :) Thanks a lot
    9·1 answer
  • 35 students planned to walk in a fund raiser. The ratio of girls to boys is 5 to 2. How many boys are there?
    12·1 answer
  • 7 trillion divide by 5 is what
    14·1 answer
  • Find the equation of the linear relationship.<br><br><br><br> Help plz :)
    7·2 answers
  • A triangle has sides with lengths of 7 millimeters, 14 millimeters, and 15 millimeters. Is it a right triangle
    6·1 answer
  • I’ll make brainliest!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!