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olya-2409 [2.1K]
3 years ago
9

What should be done to these equations in order to solve a system of equations by elimination?

Mathematics
2 answers:
Veronika [31]3 years ago
6 0

Answer:

multiply equn q by 3 .

when u will multiply equn 1 by 3 then you will get,9x+3y=39 and second equn is4x_3y=13 so, y can be cancelled and get the value of x for the first time and by putting the value of x you will find the value of y.

IgorC [24]3 years ago
4 0
Multiply equn q by 3.
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Type the correct answer in the box.
Akimi4 [234]

Answer:

\huge\boxed{-8+8i}

Step-by-step explanation:

2(-36-3i)+(5+2i)(12-2i)\\\\\text{use the distributive property and FOIL}\\\\=(2)(-36)+(2)(-3i)+(5)(12)+(5)(-2i)+(2i)(12)+(2i)(-2i)\\\\=-72-6i+60-10i+24i-4i^2\\\\i=\sqrt{-1}\to i^2=-1\\\\=-72-6i+60-10i+24i-4(-1)=-72-6i+60-10i+24i+4\\\\=(-72+60+4)+(-6-10+24)=-8+8i

7 0
3 years ago
The process of deciding whether to do or use one additional unit of a resource.
LuckyWell [14K]

Answer:

The answer to your question would be Thinking at the Margin.

Cheers!

Step-by-step explanation:


8 0
3 years ago
The table below shows the number of marbles of different colors in a bag: Marble Experiment Color of Marbles Number of Marbles R
Nesterboy [21]

Answer:

7/14

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A military aircraft can travel 740 miles per hour. The distance between Tyndall Air Force Base in Florida and Lakenheath Air For
BARSIC [14]

Answer: 3.5 h

Step-by-step explanation:

<u>1. Data:</u>

a) s = 740 miles / h

b) d = 2,567 miles

c) t = ?

<u>2. Equation:</u>

  • speed = distance / time
  • s = d / t

<u>3. Solution:</u>

  • Solve the equation for t:

        s = d / t ⇒ t = d / s

  • Substitute values:

        t = 2,567 miles / (740 miles/h) ≈ 3.47 h ≈ 3.5 h

   

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3 years ago
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Answer:

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Step-by-step explanation:

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