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
EastWind [94]
4 years ago
10

2x - y = 8x + 2y = 4For the system of equations above, what is the valueof x + y​

Mathematics
2 answers:
nirvana33 [79]4 years ago
8 0

Answer:

A) 2x - y = 8

B) x + 2y = 4  We multiply A) by two

A) 4x -2y = 16

B) x + 2y = 4  then add the equations

5x = 20

x = 4  

(then we put 4 into B)

4 + 2y = 4

2 y = 0

y = 0

Step-by-step explanation:

slava [35]4 years ago
7 0

Answer:

x + y = 4

Step-by-step explanation:

2x - y = 8 | ×1 |

x + 2y = 4 | ×2 |

2x - y = 8

2x + 4y = 8

__________--

-5y = 0

y = 0/-5

y = 0

2x - y = 8

2x - 0 = 8

2x = 8

x = 8/2

x = 4

x + y

= 4 + 0

= 4

You might be interested in
Why does a triangular prism and an oblique triangular prism, each made up of 15 equal cross sections, have the same volume? Sele
statuscvo [17]

Answer:

-The cross section areas are all the same

-The prism has the same height and area of the base

Step-by-step explanation:

8 0
3 years ago
Find all the real square roots of 0.0004.
chubhunter [2.5K]
Hey!!

the answer is 0.02 !.

if helped, brainliest
5 0
3 years ago
Read 2 more answers
Solve the system of equations using substitution. Show your work. <br> y= 2x - 10<br> y= 4x - 8
Semenov [28]
Y=2x-10
Y=4x-8
U substitute it and it turns into 2x-10 =4x-8
U get x=-1
Y=4*(-1)-8
Y=-12
(x,y)= (-1,-12)
If u have a phone u can use photo math or if u don’t there’s a thing called mathpapa
4 0
3 years ago
Pass through (-6,-6) parallel to y= 4/3x+8
Evgen [1.6K]

Answer:

y

=

4

3

x

−

6

Step-by-step explanation:

5 0
3 years ago
Item 8
SCORPION-xisa [38]

53 minutes

3:08 to 4:00 is 52 minutes.

to 4:01 would add an extra minute which would be 53.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Who Would Like To Help Me??
    7·1 answer
  • How many kilometers are equivalent to 770 meters?
    9·2 answers
  • Suppose x is uniform random variable with values ranging from 20 to 60. find the probability that a random selected observation
    9·1 answer
  • Carolyn was training for cross-country season on an indoor track. During her workout, she ran 24 laps around a track that measur
    12·1 answer
  • What is x+5×7+44÷3+16×2÷3=___<br>x=6​
    15·1 answer
  • The Marquez family drove 191.8 miles for a weekend getaway This took them 2.8 hours. How many miles per hour did the Marquez fam
    15·1 answer
  • The sum of two numbers is 250 what is the average of the two numbers
    10·1 answer
  • It takes the city train5 hours to go from the first stop to the last stop. The actual traveling time is 3 hours and the train st
    15·2 answers
  • Help me convert this. thankyou
    11·1 answer
  • Can you help me i Don’t understand
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!