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
expeople1 [14]
3 years ago
5

Solve 7x+2y=13 x-2y=11 by elimination

Mathematics
2 answers:
denis23 [38]3 years ago
5 0

Answer:

-4 is the answer

Step-by-step explanation:

Please mark brainliest! Hope it helped

inna [77]3 years ago
4 0

Answer:

-4

Step-by-step explanation:

You might be interested in
I need a ratio statment for 12 boys and 24 girls
Vlada [557]
Either 12:24, or, simplified, 1:2.
6 0
3 years ago
Read 2 more answers
FIRST CORRECT ANSWER WILL GET BRAINLIEST!!!
Mars2501 [29]
Their are 6 equilateral triangles in a regular hexagon:
The area of one triangle = (x²√3)/4, then:
1st answer: The area of the hexagon base: is  6 TIMES the area of one equilateral triangle [or, needed for 2nd, question, TOT AREA:(6x²√3)/4] = (3x²√3)/2] unit²

2nd answer: :
Volume of pyramid: (base area)(height)/3
Volume of pyramid: (3x²√3).(3x)/3 (because height = 3x, given)
Then Volume of pyramid= 3x³√3 unit³.
3 is the answer for the second question
and 6 for the 1st
4 0
4 years ago
Which equation represents "eight times a number and five is sixty-nine?"
Fiesta28 [93]

Answer:

8n + 5 = 69

And that number is 8, because 8•8+5=69

Step-by-step explanation:

"eight times a number and five is sixty-nine" in this statement the words "a number" is the number we dont know and so we use a variable for it. I put n, but you could have used x or a or any variable. The "and five" indicates adding. The "is" indicates equals.

6 0
3 years ago
Which of the following circumstances would likely make factoring the best method for solving a quadratic equation?
BabaBlast [244]

Answer:

The correct option is;

B. The difference of 2 perfect squares

Step-by-step explanation:

Solving a quadratic equation using factoring involves finding the factors of the equation that would yield the result of the quadratic equation

In order to find the roots of the quadratic equation, then the result of the factoring must be equal to zero, in which case, the constant terms in the factors are the solutions of the quadratic equation in opposite sign.

For example, we have;

x² - 5² = 11

We subtract 11 from both sides to get;

x² - 5² - 11  = 11 - 11

x² - 36 = 0

x² - 6² = 0

(x - 6) × (x + 6) = 0

Therefore, x = 6 or -6 which are the opposite sign of the constant terms in the factor.

3 0
3 years ago
Can some one help me with this
pychu [463]

Answer:

Actually i don't know what is the wanted but now

i will find the total of the teenagers.

Step-by-step explanation:

\frac{4000}{45\%}  =  \frac{x}{100\%}  \\  x =  \frac{4000 \times 100}{45}   \\ x = 8889 \:  \: teenagers

I hope that is useful for you :)

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find a unit vector that is parallel to the line tangent to the parabola y = x2 at the point (5, 25).
    14·1 answer
  • Evalúate: 3200(0.045)(8)
    9·2 answers
  • What is the greatest whole number of 67400
    10·1 answer
  • Write an expression for the calculation triple 4 and then add 6 times 6
    5·1 answer
  • Write an equation of the circle with center (-7, 4) and radius 8.
    5·1 answer
  • Tony's fish tank is a right rectangular prism 50 \,\text{cm}50cm50, space, c, m long by 25\, \text{cm}25cm25, space, c, m wide.
    12·1 answer
  • Please answer this question as a fraction, will mark you the brainliest if ur right!
    8·1 answer
  • V256 = (1 point)<br> O 12<br> O 14<br> O 16<br> O 18
    9·1 answer
  • For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an
    7·1 answer
  • Select the correct answer.<br> Which graph shows a function and its inverse?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!