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
REY [17]
3 years ago
5

To begin solving this system of linear equations by elimination,you can add the equations

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
5 0

Answer:

The Correct option is C. Addition Property of Equality.

For above Equation by Elimination we use

Addition Property of equality

Step-by-step explanation:

Given:

Addition Property of Equality :

The property that states that if you add the same number to both sides of an equation, the sides remain equal (i.e., the equation continues to be true.)

Here equation is given as

     3x   +   4y   =   38

  + 5x   -   4y    =   -30

-------------------------------------

                 8x    =   8

------------------------------------

Here +4y and -4y gets cancelled or becomes 0 hence 8x = 8.

For above Equation by Elimination we use

Addition Property of equality

You might be interested in
Explain why the equation (x-6)^-13=12 has two solutions. Then solve the equation to find the solutions. Show your work.
Gala2k [10]

Answer:

x = 10 and x = (-2) are the solutions.

Step-by-step explanation:

In the given equation (x - 4)² - 28 = 8

we will first find the zero factors which will further decide the number of solutions.

(x -4)² - 28 = 8

(x - 4)² -28 - 8 = 8 - 8 (By subtracting 8 on both the sides of the equation)

(x - 4)² - 36 = 0

(x - 4)²- 6² = 0

(x - 4 - 6)(x - 4 + 6) = 0

(x - 10)(x + 2) = 0

Now the equation only two zero factors or two solutions.

x = 10 and x = -2

Answer is two solutions only x = 10 and x = (-2)

4 0
3 years ago
Can someone help me answer this please
Citrus2011 [14]

Answer:

N = 3/8

Step-by-step explanation:

let the number be N

let's express the word sentence as a mathematical expression:

"a number multiplied by 2/5"

= "N" multiplied by 2/5

= N x (2/5)

= (2N/5) ------- (1)

"a number multiplied by 2/5 is 3/20" can be written as:

(2N/5)    =  3/20  (multiplying both sides by 5)

2N = (3/20) x 5

2N = 3/4      (divide both sides by 2)

N = (3/4) ÷ 2

N = (3/4) x (1/2)

N = 3/8

6 0
3 years ago
What is the greatest common factor of 75 and 30
igor_vitrenko [27]
The answer to this question is 15
3 0
3 years ago
Read 2 more answers
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us.
mestny [16]

For a binomial experiment in which success is defined to be a particular quality or attribute that interests us, with n=36 and p as 0.23,  we can approximate p hat by a normal distribution.

Since n=36 , p=0.23 , thus q= 1-p = 1-0.23=0.77

therefore,

n*p= 36*0.23 =8.28>5

n*q = 36*0.77=27.22>5

and therefore, p hat can be approximated by a normal random variable, because n*p>5 and n*q>5.

The question is incomplete, a possible complete question is:

Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us.

Suppose n = 36 and p = 0.23. Can we approximate p hat by a normal distribution? Why? (Use 2 decimal places.)

n*p = ?

n*q = ?

Learn to know more about binomial experiments at

brainly.com/question/1580153

#SPJ4

3 0
2 years ago
Please help me please ! Quick
UkoKoshka [18]

Answer:

4,2 is tge answer due to the interaction point plus it says the solution is at the interaction.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Raffle ticket sales a civic group sells 1000 raffle tickets to raise $2500 for its namesake charity. first prize is $1000, secon
    8·1 answer
  • What is square root of 126 + square root of 56 in standard form
    9·2 answers
  • Find the sales tax and total cost of an expresso machine that costs $32.95. The tax rate is 7%.
    10·1 answer
  • The product of 15 and the sum of a number and 5 is 90.
    15·1 answer
  • Plz help me with this sum, see the pic. Thank you
    9·1 answer
  • Find the area of the trapezoid. The measures of the dimensions are given below of the figure.
    9·1 answer
  • How many solutions does this system have?
    11·1 answer
  • What is the slope for (-11,7),(15,-3)​
    12·2 answers
  • Need help really bad please and thank you!
    10·2 answers
  • Help please asap I’m desperate!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!