use substitution to find the solution to the systems of equations

x-y=5
4x+y=10​

Answer:

10

??

Step-by-step explanation:

the proportion is 9:12 I think

9514 1404 393

Answer:

  D.  h(x) = 5x² +12x +9

Step-by-step explanation:

The final constants are mostly different, so you can simplify your work by just figuring that one.

  h(x) = g(x) -f(x)

  h(0) = g(0) -f(0) = -7 -(-16) = +9 . . . . . matches choice D

__

If you want to figure the whole expression ...

  h(x) = g(x) -f(x)

  h(x) = 12x² +7x -7 -(7x² -5x -16)

  h(x) = 12x² +7x -7 -7x² +5x +16

  h(x) = (12 -7)x² +(7 +5)x +(-7 +16)

  h(x) = 5x² +12x +9 . . . . . matches choice D

Answer:

Where is the graph of this question?

300. Because the distance is still 100 in between.

Answer:

8

Step-by-step explanation:  

x=average

(x+x+x+x)/4=average

to increase x by 2 you add 2

x+2=average

(x+2+x+2+x+2+x+2)=4=(4x+8)/4=x+2

you'd have to increase the sum by 8 to make the numbers' averages' go up by 2

Answer:

Answer is 'Lines'

Step-by-step explanation:

We use the lines to draw plane on paper.

For example, to draw three dimensional cube , we use lines.

Answer: A I think

Step-by-step explanation:

Answer: LOL its D

Step-by-step explanation:

Answer:

DE=24

Step-by-step explanation:

We can see clearly that the two angles, angle A and angle F are congruent with one another, and since they are, we know the two triangles are shifted in a growth, not in an adjustment of angles. the hypotenuse doesnt matter, what does matter is the 5 and the 10, clearing showly the transition of Triangle ABC to Triangle DEF is times 2. Therefore, 12 times 2 is 24.

Answer:

Step-by-step explanation:

segment DE is what we want to find

notice that the two triangles are similar, similar here just means one is an exact copy of the other, except for scale.  One is an exact scale copy of the other.  sooooo  we can make some scaling of one side of one.. to the same side of the other.    here we want DE so .. see that BC is the same side on the other , smaller triangle?

now notice AB on the small triangle and FE on the bigger one... sooo just by observation we can see, that the bigger triangle is 2X bigger than the small one  ,  b/c  5 * 2 = 10  .  5 is the AB side of the smaller triangel and 10 is the same side but on the bigger triangle and 2 is our scaling factor.. got it?

So do the same on BC to find DE

12 * 2 = DE

24 = DE

see?  :)

Answer:

Step-by-step explanation:

In order for us to be able to find our answer, we need to show our work.

-3(x-y=3) → -3x + 3y = -9

                 +2x - 3y = -1

____________________________

                  -1x = -10

                   -1      -1

We need to divide -1 both sides in order for us to be able to find our x-value but there's more to this than just solving for X.

x = 10

x - y = 3

10 - y = 3

-10       -10

_________________

-y = -7

-1     -1

We need to divide -1 both sides in order for us to be able to find our y-value. Please note that each y is equivalent to an invisible 1.

y = 7

As a result, your answer will be B.

Given:

A triangle has side lengths of (6p – 7) centimeters, (7p – 2) centimeters,

and (6q – 9) centimeters.

To find:

The expression that represents the perimeter, in centimeters, of the triangle.

Solution:

We know that, perimeter of a triangle is the sum of its all sides.

[tex]Perimeter=(6p-7)+(7p-2)+(6q-9)[/tex]

Combining like terms, we get

[tex]Perimeter=(6p+7p)+6q+(-7-2-9)[/tex]

[tex]Perimeter=(13p)+6q+(-18)[/tex]

[tex]Perimeter=13p+6q-18[/tex]

Therefore, the perimeter of the triangle is represented by the expression [tex]13p+6q-18[/tex] centimeters.

A triangle has side lengths of (6p – 7) centimeters, (7p – 2) centimeters, and (6q – 9) centimeters.

To find:

The expression that represents the perimeter, in centimeters, of the triangle.

Answer:

-18+13p+6q

(Also got it right on a test)

Answer:

Pentagon

Step-by-step explanation:

A quadrilateral must have four angles and four verticies. A pentagon does not have 4 verticies, but 5.

Answer:

its a pentagon-

oOooOOOooOOOooh gOooOOooOOnn

Step-by-step explanation:

Answer: It’s 20

Step-by-step explanation:

Plz mark me brainliest

Answer:

20 is the answer

Step-by-step explanation:

Answer:

He would factor out 4(x+5)

Step-by-step explanation:

You can't do much until the 4(x+5) is factored out.

Once it is then it'd be 3x-8=4x+20

Then you subtract 3x on both sides and subtract 20 on both sides.

You'd be left with -28=x

Hope this helps

==========================================================

Explanation:

The primes in this list are: {2,3,5}

The value 1 is not prime.

We have 3 primes out of 5 values total, so 3/5 = 0.6 = 60% of the list is prime. That makes 100% - 60% = 40% of values are not prime

This is the probability of getting a non-prime number.

Answer:

40%

Step-by-step explanation:

Prime numbers are whole numbers greater than 1 that only have 2 factors, for example, 2, 3, 5, 7, 11 are all prime numbers

In this data set 2, 3, and 5 are all prime numbers

3 out 5 numbers are prime

so the fraction is  [tex]\frac{3}{5}[/tex]

after you have found the fraction, you can divide it to find the percentage

In this case, when you divide the fraction you get 0.6

to make this a percentage you move the decimal place two spaces to the right. so 60%

60% are the values that are prime so you do this equation

100%-60%=40%

Answer:

10

Step-by-step explanation:

Answer:

You would have to spend 674 dollars on trees if you only wanted to buy 30.

Step-by-step explanation:

22 times 15 = 264

28 times 15 = 420

Add them and you get 674

Answer:

D) 80

Step-by-step explanation:

<7 = <2 b/c they're alternate exterior angles

Answer:

6

Step-by-step explanation:

The orange line doesn't pass 6, it stays at 6.

Answer:3 x 2 +y is 6

Step-by-step explanation:

I hope i helps if wrong sorry

Answer:

xy(3x + 1)

Step-by-step explanation:

I took the test

Answer:

8.2m

Step-by-step explanation:

Answer:

the answer is 8.2

Step-by-step explanation:

I took the k12 quiz

Answer:

D

Step-by-step explanation:

The opposite of negative is positive therefore,

the opposite of -2 is positive 2.

2 is locaded at D.

Answer:

11.45 : 28.63

Step-by-step explanation:

6 + 5 = 11

63/11 = 5.72

x2=11.45

x5=28.63

Answer:

Your answer should be 54!

Answer:

320 x 0.08 = X

In the case, a payment equal to or greater than $ 25.60 would be considered acceptable by the company.

Step-by-step explanation:

Given that a major credit card company requires monthly payments equal to or greater than 8% of the total balance, and a consumer has a credit card balance of $ 320, the following calculations must be performed to determine an inequality that represents acceptable payment amounts:

320 x 0.08 = X

25.6 = X

Thus, in the case, a payment equal to or greater than $ 25.60 would be considered acceptable by the company.

Answer:  x   = √28

Step-by-step explanation:

a² + b² = c²         Use Pythagorean Theorem to find the missing length.  

x² + 6² = 8²      

x²+ 36 = 64         [Subtract 36 from both side]  

        x²= 28        

     √x² = √28     [solve the square root from both side]

       x   = √28  

Answer:

-8/9

Step-by-step explanation:

Let the number = x

Expressing the problem Mathematically ;

2x * 3 = 5x - 8/9

6x = 5x - 8/9

6x - 5x = - 8/9

x = - 8/9

Hence, the number is - 8/9

Answer:

4x-3y= 36-12=24 make me the brainlest