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
Lynna [10]
2 years ago
15

What is 2x+3y=30 & x+y=14 In elimination

Mathematics
1 answer:
puteri [66]2 years ago
4 0

Answer:

x= 12 and y= 2

Step-by-step explanation:

First you would line up the equations so the x's and y's are on top of each other. Then you would multiply x+y=14 by 3 to give you 3x+3y=42. After that you subtract 2x-3y=30 and 3x+3y=42 to give you an answer of x=12. After that, you plug in x with 12 in the equation x+y=14. You subtract 12 from both sides to get an answer of 2. So ur solution is (12,2)

   

You might be interested in
Solve: x^+4/x-1 = 5/x-1
AlexFokin [52]
The first step for solving this equation is to determine the defined range.
\frac{ x^{4}  }{x-1} = \frac{5}{x-1}, x ≠ 1
Remember that when the denominators of both fractions are the same,, you need to set the numerators equal. This will look like the following:
x^{4} = 5
Take the root of both sides of the equation and remember to use both positive and negative roots.
x +/- \sqrt[4]{5}
Separate the solutions.
x = \sqrt[4]{5}           , x ≠ 1
x = -\sqrt[4]{5} 
Check if the solution is in the defined range.
x = \sqrt[4]{5} 
x = -\sqrt[4]{5} 
This means that the final solution to your question are the following:
x = \sqrt[4]{5}          
x = -\sqrt[4]{5} 
Let me know if you have any further questions.
:)
7 0
3 years ago
What is 5/10 + 2/10 ?
Daniel [21]

Step-by-step explanation:

5/10+2/10

7/10

0.7

................

4 0
3 years ago
Mother has purchased 75 yards of green fabric and 125 yards of white fabric to make green and white curtains. What is the larges
andrew11 [14]

Answer:

your answer would be 190 all u do is add

Step-by-step explanation:


7 0
3 years ago
What is the difference? StartFraction 2 x + 5 Over x squared minus 3 x EndFraction minus StartFraction 3 x + 5 Over x cubed minu
inn [45]

Answer:

\frac{(x+5)(x+2)}{x(x-3)(x+3)}

Step-by-step explanation:

The given expression is

\frac{2x+5}{x^{2} -3x} -\frac{3x+5}{x^{3} -9x} -\frac{x+1}{x^{2}-9}

First, we need to factor each denominator

\frac{2x+5}{x(x-3)} -\frac{3x+5}{x(x+3)(x-3)} -\frac{x+1}{(x-3)(x+3)}

So, the least common factor (LCF) is x(x-3)(x+3), because they are the factors that repeats.

Now, we diviide the LCF by each denominator, to then multiply it by each numerator.

\frac{(x+3)(2x+5)-3x-5-x(x+1)}{x(x-3)(x+3)} =\frac{2x^{2}+5x+6x+15-3x-5-x^{2}-x }{x(x-3)(x+3)}\\\frac{x^{2}+7x+10}{x(x-3)(x+3)}

Then, we factor the numerator, to do so, we need to find two numbers which product is 10 and which sum is 7.

\frac{(x+5)(x+2)}{x(x-3)(x+3)}

Therefore, the expression is equivalent to

\frac{(x+5)(x+2)}{x(x-3)(x+3)}

8 0
2 years ago
Read 2 more answers
Omg can anyone please help me thank you if I’m able to give brainliesst I will
ivolga24 [154]

Answer: 591

Step-by-step explanation:

12 x 13= 156

12 x 5= 60 x 2= 120

12 x 5= 60/2= 30 x2= 60

5 x 12= 60

13 x 15= 195

195 + 60 + 60 + 120 + 156= 591

6 0
2 years ago
Other questions:
  • What is another name for a relation that has each element in its domain paired with exactly one element in its range? Apex
    8·1 answer
  • The base of a expoential function can be a negative number true or false
    12·2 answers
  • What number us 17 less than the product of 7 and 11
    9·1 answer
  • How do you determine whether each triangle with sides of given lengths is a right triangle 28, 95, 197?
    6·1 answer
  • #12 only please I need to turn this in tommorow help
    13·2 answers
  • 45 × ÷ 15 = 45<br><br><br><br> please answere me
    7·1 answer
  • Can someone please help me
    5·1 answer
  • EASY MATH QUESTION HELP! Under the Angle Addition Postulate, which equation would be valid?
    6·2 answers
  • Is c²+d²=(c+d)(c-d)​
    13·1 answer
  • The linear equation y = mx + b contains the point (4, -2) and is perpendicular to the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!