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
chubhunter [2.5K]
3 years ago
13

4y=x 3x-y=70 how to solve this problem using substitution

Mathematics
1 answer:
diamong [38]3 years ago
3 0
4y=x
3(4y)-y=7012y-y=70
11y=70
y=70/11
4(70/11)=x
280/11=x
You might be interested in
What number do you multiply to find this partial product 8×56
Serhud [2]

Answer: It is 7

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Chris's art Class is 8 hours long. How long is his class in minutes?
andre [41]
60 minutes in an hour
60 x 8 = 480
his class is 480 minutes long
4 0
3 years ago
-22m-13n<br><br>i need to factorise this
sukhopar [10]
1 22. 1 13
11 22. 13 13
22 22

answer 1 (-22m -13n)
7 0
3 years ago
if 18 meters of high resistance wire with a diameter of 1.2 mm has a resistance of 10 ohms, what is the resistance of 27 m of th
Stells [14]
The electrical resistance of a wire varies as its length and inversely as the square of the diameter.
R = (k*L)/(d^2)
where k = proportionality constant
Since the two wires have the same material, their proportionality constant is same.
Equating that
(R1*d1^2)/L1 = (R2*d2^2)/L2

Given that R1 = 10 ohms, d1 = 1.2 mm or 0.0012 m, L1 = 18 m, d2 = 1.5 mm or 0.0015 m, L2 = 27 m, and R2 is unknown.
Therefore
[10*(0.0012^2)]/18 = [R2*(0.0015^2)]/27
R2 = 9.6 ohms 
6 0
3 years ago
Please Help me idk this
oksian1 [2.3K]

Answer:

4/7

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Find the mean, variance, and standard deviation. If necessary, round your answer to the nearest hundredth.
    6·1 answer
  • Please answer and explain your reasoning thanks!
    10·2 answers
  • Solve for x.<br><br> x = __°
    8·1 answer
  • Mrs. Sanders bought a block of chocolate that weighed 3⁄8 of a pound. She cut the chocolate into 3 equal pieces. What was the we
    10·1 answer
  • How many points out of 416 do i need to get to get a 60% in class <br> Right now I have 153.
    15·2 answers
  • Need help Thank you very much
    12·1 answer
  • Using Cramer's Rule, what are the values of x and y in the solution to the system of linear equations below? -2x + 3y + z = 7 -4
    15·1 answer
  • WILL MARK BRAINLIEST FOR CORRECT ANSWER
    14·1 answer
  • Please help
    15·1 answer
  • (0,7) =(0+X/2,6+y/2)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!