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suter [353]
3 years ago
8

Which two numbers add up to 27 and multiply to -160?

Mathematics
1 answer:
OleMash [197]3 years ago
7 0

     + 32
and
     - 5

will do that job for you.
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4. Solve the following system of equations for x.
Ber [7]

We are given the system of equations -:

\large{ \begin{cases} 2x + 3y =  - 14 \\ y = 6x + 22 \end{cases}}

Since the second equation is y-isolated equation. It can be substituted as y = 6x+22 in the first equation.

\large{2x + 3(6x + 22) =  - 14}

Expand 3 in the expression so we can combine like terms and isolate x-variable.

\large{2x + 18x + 66 =  - 14}

Then combine like terms.

\large{20x + 66 =  - 14}

Get rid of 66 from the left side by subtracting both sides by itself.

\large{20x + 66 - 66 =  - 14 - 66} \\  \large{20x =  - 80}

To finally isolate the variable, divide both sides by 20 so we can leave x only on the left side.

\large{ \frac{20x}{20}  =  \frac{ - 80}{20} }

Simplify to the simplest form.

\large{x =  - 4}

Normally, we have to find the y-value too but since we only find x-value. The answer is x = -4.

Answer

  • x = -4

I hope this helps! If you have any questions or doubts regarding my answer, explanation or system of equations, feel free to ask!

5 0
3 years ago
Please help me out with this
Olin [163]
The pattern is multiplying by 3. So it will be: 243, 729
4 0
3 years ago
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Select the values of x that make the inequality x < -2 true.
ANTONII [103]

Answer:

A and B

Step-by-step explanation:

-3 and -2 are the only values less than or = to -2

the rest are greater than -2

8 0
3 years ago
Read 2 more answers
X2 +5x+1<br> x 3x2 - 2x + 4
bulgar [2K]

Answer:

6x^2+5x+4

Step-by-step explanation:

hope this helps

5 0
3 years ago
Huda opened a bank account with $30.00 and deposited $25.00 every month. After several months, she had a total of $180 in her ac
krek1111 [17]
Answer: C.) 6 months
3 0
3 years ago
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