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
Studentka2010 [4]
2 years ago
13

4x - y = -4 5x = 2y +1 how do I solve this using elimination?

Mathematics
2 answers:
TEA [102]2 years ago
6 0

Answer: x=-3, y=-8

Step-by-step explanation:

you will leave the first equation alone for now

the second, we will subtract 2y from both sides

5x-2y=1

now you system is

4x-y=-4

5x-2y=1

we will multiply the first equation with -2

-8x+2y=8

5x-2y=1

add both equations, we get -8x+5x=9,  -3x=9,  

x=-3

we will replace x with -3 in any equation, lets use 4x-y=-4,

-12-y= -4,         -y=12-4,                -y=8,         y=-8

julia-pushkina [17]2 years ago
4 0
8x - 2y = -8
-5x + 2y = -1

3x = -9
x = -3
You might be interested in
Can someone please help me arrange this in order.
Nesterboy [21]
Is this ELA because if it is i am horrible at it
7 0
3 years ago
For this question, you must solve for x.
Tema [17]

Answer:

22

Step-by-step explanation:

3x = x+44(base angle of isosceles triangle are equal)

2x = 44

x = 22

8 0
2 years ago
John played a note on his tuba that vibrated the air 50 times per second. If
Zanzabum

Answer:

100 times

Step-by-step explanation: vibration per second: 50 times

                               vibration for 2 seconds; 50*2=100 times

8 0
3 years ago
Read 2 more answers
Can somone please help with this, will give brainliest.
Alex777 [14]

Answer: maybe c or d, but I could be wrong :/

Step-by-step explanation:

7 0
3 years ago
Find the volume of a cube with edges of 5 and 1/3 inches
True [87]
Since all the sides of a cube are the same length, then to find the volume just use the volume formula

v = length x width x height
v = 5 1/3 x 5 1/3 x 5 1/3
v = (16/3)^3
v = 4096/27
v = 151.70 inches^3
6 0
3 years ago
Other questions:
  • Which is a perfect square<br> 61<br> 62<br> 63<br> 64
    5·1 answer
  • Find the product (3s+6t)(s+t)
    12·1 answer
  • 24 x 0.17 lol help pls
    12·1 answer
  • After the release of radioactive material into the atmosphere from a nuclear power plant in a country in 1982​, the hay in that
    9·1 answer
  • A rocket is launched from a tower. the height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
    6·1 answer
  • Which expression has the least value when x = 400
    10·1 answer
  • A company sells widgets. The amount of profit, y, made by the company, is related to
    13·1 answer
  • Write down the value of √196​
    8·2 answers
  • А<br>A<br>8 cm<br>E<br>5 cm<br>B.<br>С C<br>D<br>12 cm​
    14·1 answer
  • To divide the following equation how would we revise the problem? 7.82 divided by .25
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!