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yan [13]
2 years ago
15

Find the solution to the system of linear equations.

Mathematics
1 answer:
natali 33 [55]2 years ago
6 0

Answer:

     x = -1          y = 2

Step-by-step explanation:

Notice that the coefficients of x are opposites of each other.  That makes the problem so much easier to solve.  All you have  to do is add the two equations and the x terms will be eliminated.

2x - 4y = -10

<u>-2x - y = 0</u>

    - 5y = -10

        y = 2        Substitute y = 2 into the first equation.  2x - 4(2) = -10

                                                                                          2x - 8 = -10

                                                                                               2x = -2

                                                                                                 x = -1

It is always a good idea to check your results into the equations to see if they satisfy the equations.

<u>    </u>

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Can someone please help me with # 2 #13 thanks show work how it's done, please
zavuch27 [327]

Problem 13

10p+10q factors to 10(p+q). If we apply the distributive property, we can distribute the 10 to each term inside (p and q) to get

10(p+q) = (10 times p)+(10 times q) = 10*p + 10*q = 10p+10q

so we get the original expression again. Here 10 is the GCF of the two terms.

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

Plug p = 1 and q = 2 into the factored form

10*(p+q) = 10*(1+2) = 10*(3) = 30

As a check, let's plug those p,q values into the original expression

10*p+10*q = 10*1+10*2 = 10+20 = 30

We get the same output of 30

6 0
3 years ago
Give the name (monomial,<br> binomial, trinomial etc.) and<br> degree of the polynomial.<br> x + 2
Zielflug [23.3K]

Answer:

Step-by-step explanation:

x+2

degree is 1  

x^{1} +2

and has two terms so is a binomial

7 0
2 years ago
How to do 14-17.. or just give me the answer .​
r-ruslan [8.4K]

Answer: use socratic you take a picture of the problem and it does it.

5 0
3 years ago
f the pattern in the table is extended to represent more equivalent ratios for 2:6, which pair of numbers would be in the column
olasank [31]

The pair of numbers that would be in the columns, considering the proportional relationship, is given as follows:

20 would be in the column for 2, and 60 would be in the column for 6.

<h3>What is a proportional relationship?</h3>

A proportional relationship is a special linear function, with intercept having a value of zero, in which the output variable is obtained with the multiplication of the input variable and the constant of proportionality k, as shown as follows:

y = kx

The table is extended to represent more equivalent ratios for 2:6, hence the constant of the relationship is given as follows:

k = 6/2 = 3.

Hence the equation is:

y = 3x.

The values given by each column are given as follows:

  • Column 2: values of x.
  • Column 6: values of y.

When x = 20, the numeric value of the relationship is of:

y = 3 x 20 = 60.

Hence the first option is correct.

More can be learned about proportional relationships at brainly.com/question/10424180

#SPJ1

3 0
1 year ago
Pls find the area to the second power.
Tom [10]
First of all gall, the end is NOT an exponent, its the unit of measurement for finding the area (thats square units)

Heres the answer:
31.5 square units.
Explanation:
The formula for the area of a triangle is bh/2
The formula for the area of a triangle is bh
(Use this formula and try to find the real explanation)
3 0
3 years ago
Read 2 more answers
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