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
Taya2010 [7]
3 years ago
9

Solve the system of equations using substitution or elimination by addition.

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
8 0

Answer: A. The unique solution to the system is (0.1,0.4)

Step-by-step explanation:

 You can follow these steps to solve the system of equation by the Elimination Method:

- Multiply the first equation by -0.7, then add both equations and solve for "y":

\left \{ {-0.7(x + y) =-0.7(0.5)} \atop {0.7x + 0.6y = 0.31}} \right.\\\\\left \{ {-0.7x-0.7y =-0.35} \atop {0.7x + 0.6y = 0.31}} \right.\\............................\\-0.1y=-0.04\\\\y=0.4

- Substitute the value of "y" into any original equation to find the value of "x". Then:

x + (0.4) = 0.5\\\\x=0.5-0.4\\\\x=0.1

 Therefore, the unique solution to the system is (0.1,0.4)

irakobra [83]3 years ago
4 0

Answer:

a. (0.1,0.4)

Step-by-step explanation:

You might be interested in
What is the value of the expression 8 P4 ? <br>32 <br>1,680 <br>40,296 <br>40,320​
Strike441 [17]

Answer:

1,680

Step-by-step explanation:  

7 0
3 years ago
What value of x is in the solution set of 3(x – 4) &gt; 5x + 2?
lina2011 [118]
<h2>♥Hi dear♥</h2>

Answer:

Your answer is given in the attachment above⬆⬆⬆⬆

✌Do mark my answer as brainliest ✌

♥And follow me♥

3 0
3 years ago
Read 2 more answers
You are making several purchases from the I.B. Electric electronics store. You can buy from this retailer online or in a physica
svetoff [14.1K]
<span>Buy the batteries and stereo online: 

4.99*2= $9.98 +$90 = $99.98 
6.99-5.00 = $1.99 
99.98+1.99=$101.97 

3Cds in store 
7.97*3= $23.85 
5% tax = 1.19 
10% off = 2.39 
$23.85 - $1.19= $22.66 

22.66 + 101.97= $124.63 

All in store: 
12+100+23.85= 135.85 - 6.45 = $129.40 

All online: 
9.98 + 90 + 26.85= 126.85 +$1.99 = 128.84</span><span>
</span>
4 0
3 years ago
Read 2 more answers
What is 2x – 4 = 2? Please answer soon!
frozen [14]
Add 4 to the right side of the equation to get sex then divide that by 2X and you get 3
4 0
3 years ago
Read 2 more answers
18x-10-6x=50<br> This is another question on my quiz I really need help
prohojiy [21]
The answer is got is X=5 :)
7 0
2 years ago
Other questions:
  • A trapezoid is a quadrilateral with exactly
    7·2 answers
  • Please help! I’m stuck here. I’ll give brainliest to first one to answer
    8·2 answers
  • How do you find out the volume
    14·2 answers
  • While riding her bike, Susan burns 450 calories every ½ hour. Based on this
    9·1 answer
  • Find the Greatest Common Factor of the following numbers.<br> 9, 15 and 36
    8·1 answer
  • Can someone plz help me with number 6 I’m not under stand this show work plzz
    8·2 answers
  • SOLVE THE SYSTEM OF EQUATIONS USING ELIMINATION.The equation is 4x+y=-5 and -2x+2y=6 (show work pls )
    9·1 answer
  • You are taking a multiple-choice test that has 7 questions. Each of the questions has 5 choices, with one correct choice per que
    11·1 answer
  • In an arithmetic sequence, the sum of the first n terms is s_n=n^2. find a_8
    9·1 answer
  • Raise the product of 36 and 9 to the power of the sum of 2 and 4.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!