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vredina [299]
4 years ago
5

Which equation results from adding the equations in this system? x + 6 y = 9. Negative x + 2 y = negative 15. 8 y = negative 6 8

y = 6 4 y = 24 4 y = negative 6Which equation results from adding the equations in this system? x + 6 y = 9. Negative x + 2 y = negative 15. 8 y = negative 6 8 y = 6 4 y = 24 4 y = negative 6
Mathematics
2 answers:
nignag [31]4 years ago
8 0

Answer:

8y = - 6

Step-by-step explanation:

Given the 2 equations

x + 6y = 9 → (1)

- x + 2y = - 15 → (2)

Adding the 2 equations term by term gives

(x - x) + (6y + 2y) = (9 - 15), that is

8y = - 6

maxonik [38]4 years ago
8 0

Answer:

8y = -6

Step-by-step explanation:

I got it right on Edge 2020

Also: Plug in the slope 8 and the y-intercept -6 to check the answer. It is correct.

You might be interested in
$100 are shared between Adam and Hamza in the ratio 1:3.
Sholpan [36]

Answer:

$25 for Adam and $75 for Hamza

Step-by-step explanation:

$100 will be divided to 3 + 1 = 4 parts

the dollars Adam received

= $100 × 1/4

= $25

the dollars Hamza received

= $100 × 3/4

= $75

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

the dollars Hamza give to Adam

= $75 × 25%

= $75 × 25/100

= $18.75

the dollars Adam have

= $25 + $18.75

= $43.75

the dollars Hamza have

= $75 - $18.75

= $56.25

the ratio

= 43.75:56.25

= 7:9

3 0
3 years ago
Simplify the product. 2n(n2 + 3n + 4)
Monica [59]

Answer:

2 n 3 + 6 n 2 + 8 n

Step-by-step explanation:

2n(n2 + 3n + 4)

<u><em>Simplify :</em></u>

= 2 n 3 + 6 n 2 + 8 n

7 0
4 years ago
Leroi and sylvia both put 100 in a savings account. Leroi decides he will put in additional 10$ each week. Sylvia decides to put
drek231 [11]
<span>Leroi and sylvia both put 100 in a savings account.
=> Leroi decides he will put in additional 10$ each week.
=> Sylvia decides to put in additional 10% of the amount in the account each week.
Now, who has more money after the first additional deposit?
And who has more money after the second additional deposit?
Answer = the answer is the Sylvia
Because at the beginning they both have 100 dollars in their account
Then Leroi deposited 10$ per week  which will become 20$ for 2 weeks and have a total of 120 dollars.
Sylvia also deposited 10% of her money which is also 10$ and on the second week will be 100 + 10% = 121, she’ll also got a total of 121$.</span>



8 0
3 years ago
The polynomial p ( x ) = x 3 − 7 x − 6 p(x)=x 3 −7x−6p, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 7, x, m
avanturin [10]

Answer:

p(x)=x^3-7x-6 = (x+1)(x+2)(x-3)

Step-by-step explanation:

Given that polynomial:

p(x)=x^3-7x-6

Known factor: (x+1)

To find:

Equation of the polynomial as the product of linear factors.

Solution:

The degree of polynomial is 3, and when we divide it by a linear equation, the result will be a quadratic.  That quadratic will have 2 solutions.

We can solve the quadratic in two linear factors and as a result we will have the answer.

First of all, we need to divide the polynomial p(x) with the given factor (x+1) to find the other factors.

\dfrac{x^3-7x-6}{x+1} = x^2-x-6

Solving the quadratic:

x^2-x-6 = x^2-3x+2x-6\\\Rightarrow x(x-3)+2(x-3)\\\Rightarrow (x+2)(x-3)

So, the answer is:

p(x)=x^3-7x-6 = (x+1)(x+2)(x-3)

4 0
3 years ago
Read 2 more answers
Simplify completely the quantity 5 times x to the third power plus 10 times x to the 2nd power plus 15 times x all over 5 times
dedylja [7]
The <u>correct answer </u>is:

x²+2x+3.

Explanation:

\frac{5x^3+10x^2+15x}{5x}

We need to divide each term of the numerator by the denominator.  For the <u>first term</u>:
\frac{5x^3}{5x}

Dividing the coefficients, we have 5/5 = 1.  
When dividing the variables, we use the quotient rule:  when dividing powers that have the same base, subtract the exponents.  This gives us:
x³/x = x³/x¹ = x³⁻¹ = x²

For the first monomial, this gives us 1x² = x².

The <u>second term</u>:
\frac{10x^2}{5x}

Dividing the coefficients, we have 10/5 = 2.
Dividing the variables, we again use the product rule:
x²/x = x²/x¹ = x²⁻¹ = x¹ = x

Together this gives us 2x.

The <u>third term</u>:
\frac{15x}{5x}

Dividing the coefficients, we have
15/5 = 3.
Dividing the variables, we have x/x; when you divide something by itself, the answer is 1.  This gives us:
3*1 = 3.

Together our quotient is x²+2x+3.
7 0
3 years ago
Read 2 more answers
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