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
Aneli [31]
3 years ago
14

Solve: 2x+6y=42 3x+2y=70

Mathematics
1 answer:
Pachacha [2.7K]3 years ago
5 0

Answer:

x-4y=28

Step-by-step explanation:

2x+6y=42

-3x-2y=-70 (both side multiple -1 )

The answer is   x-4y=28 or -x+4y=-28

You might be interested in
Which equation represents a proportional relationship? A)y = 5 B)x = 3 C)y = 2x + 3 D)y = 1/4 x
umka2103 [35]
D)y=1/4x represents a proportional relationship
6 0
3 years ago
If a(n)=24 which recursive formula could represent the sequence below? <br> ...,24,88,664,8408,...
sesenic [268]
24= 3*2^3  
88= 11*2^3
664= 83*2^3 -> 83=11+72 = 11 + 2^3*3^2
664=2^3 (11+2^3*3^2) = 88 +(2^3*2^3*3^2) = 88 +(24^2)

8408= 1051 * 2^3 -> 1051= 83+968 -> 968 = 2^3 * 11^2
8408= 2^3 (83+2^3*11^2) = 664 +(2^3*2^3*11^2) = 664 +(88^2)

So: 
a(n) = a(n-1) + a(n-2)^2

Lets check: 88+24^2= 664
664+88^2= 8408


3 1
3 years ago
Find the value of x.<br> 120°<br> 97°<br> xo<br> 130°<br> 150°<br> X=
Tems11 [23]
Yh can we please stop with all these links they don’t help at all
8 0
3 years ago
A student concludes that for all values of x,x^2+x+1 produces a prime number. Which value of x serves as counterexample to prove
Dafna11 [192]

Answer:

j

Step-by-step explanation:

Substitute the given values into x² + x + 1 and check if result is prime

x = - 4

(- 4)² - 4 + 1 = 16 - 4 + 1 = 13 ← prime

(- 2)² - 2 + 1 = 4 - 2 + 1 = 3 ← prime

(- 3)² - 3 + 1 = 9 - 3 + 1 = 7 ← prime

4² + 4 + 1 = 16 + 4 + 1 = 21 ← not prime

x = 4 serves as a counterexample to disprove this conclusion

5 0
2 years ago
Bx=-7    How do I solve?
balu736 [363]
To solve for x
bx=-7
divide b on both sides
x=-7/b

to solve for b
bx=-7
divide x on both sides
b=-7/x
5 0
3 years ago
Other questions:
  • You've decided you want a plant for your room. At the gardening store, there are 444 different kinds of plants (tulip, fern, cac
    13·1 answer
  • 1.5b + 9 = 11<br><br> Please help will give brainliest to CORRECT answer
    8·2 answers
  • Enter the answer.<br> What is ??
    12·1 answer
  • Which expression below is an equivalent expression to: (13n^4+12n^3-3+8n^2)+(-11n^2-n^3)
    12·1 answer
  • Which of these problem types can not be solved using the Law of Sines?
    6·2 answers
  • your teacher is giving you a test worth 100 points that contains 40 questions. there are 2point questions on the test. how many
    9·1 answer
  • What is the answerto c and d
    13·1 answer
  • Help me please and thank you.
    14·1 answer
  • Help please!! I don't understand the meaning! Please describe what you did too please!!
    7·2 answers
  • Help me please please!!!!!!!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!