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
Vaselesa [24]
3 years ago
8

Follow the directions to solve the system of equations by elimination. 8x + 7y = 39 4x – 14y = –68 Multiply the first equation t

o enable the elimination of the y-term. Add the equations to eliminate the y-terms. Solve the new equation for the x-value. Substitute the x-value back into either original equation to find the y-value. Check the solution. The solution to the system of equations is (, ).
Mathematics
2 answers:
igomit [66]3 years ago
6 0
8x +7y = 39 multiply everything by 2
2(8x +7y = 39)
16x +14y = 78
+4x - 14y= -68
-------------------------
20x = 10
20x /20 = 10/20
x = 1/2

Plug x into first formula
8 x + 7y =39
8(1/2) 7y=39
4+ 7y =39
4-4+7y =39-4
7y =35
7y/7 = 35/7
y = 5
(1/2, 5)
sattari [20]3 years ago
3 0

Answer:

1/2, 5

Step-by-step explanation

i guessed

You might be interested in
Will give Brainlist .Question is in the picture.Only answer if you know the correct answer.
aivan3 [116]
The slope of that line is m=2/5
3 0
3 years ago
There are two sources that serve as the foundation for conducting research on learning. The first source addresses characteristi
Leviafan [203]

Answer:

There are two sources that serve as the foundation for conducting research on learning. The first source addresses characteristics of knowledge itself and the different ways in which we learn things. The second source focuses on what goes on in our minds and how that is theoretically represented.

Step-by-step explanation:

The investigations on the process of how we learn have led to two main sources:

- Acquisition of knowledge which involves assimilation or understanding, storage and retrieval

- The second source belongs to a modern learning cognitive psychology, neuroscience, and cognitive science theories on mental representation, which concerns about the build up of an internal symbol or cognitive representation to hypothetically figure out, external reality.

8 0
3 years ago
Describe four different subsets of a real numbers.
Vadim26 [7]

Answer:

Step-by-step explanation:

Natral whole rational irrational

7 0
3 years ago
Answer<br> please <br> for all five
labwork [276]

Answer:

fna-yzqk-yus

j.o.i.n gi.r.ls to see my d.ic.k and c.u.m.mi.ng

8 0
3 years ago
I dont under stand these?
Alexeev081 [22]
The first one means what is the smallest number that goes into 12 which would be 4. The second one mean what does not go into 4 and 6 so that would be 8 because 6 is not a multiple of 8.The third one is either 1 or 2 not sure. And the 4th one is little complicated you might want to look up video on prime factorization that can really help you . 
8 0
3 years ago
Other questions:
  • Plz help thank you 4number4
    6·1 answer
  • Can anyone help me with this question please
    14·1 answer
  • Please help me with this math problem
    8·2 answers
  • Subtract the following complex numbers:<br> (3 +31) - (13+15)
    11·2 answers
  • Please help!!! I don’t understand it at all and I need it ASAP!
    10·1 answer
  • Which of the following is something that will not affect your homeowner's insurance premium?
    8·2 answers
  • A classroom had 8 rows of desks with 6 desks in each row. Four desks were removed from the room. How many desks were left?
    15·1 answer
  • I'll give the BRAINLIEST Basically everything is in the picture PLEASE HELP me ASAP IM BEGGING ​
    7·1 answer
  • At a sale on winter clothing, Cody bought two pairs of gloves and four hats for $44.00. Tori bought two pairs of gloves and two
    9·1 answer
  • What is the y-intercept of the graph below?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!