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ehidna [41]
3 years ago
5

Someone please help ASAP will give brainliest

Mathematics
1 answer:
iren [92.7K]3 years ago
7 0

Your answer is B Hope I helped :)

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Solve the system of equation
nikdorinn [45]

Answer:

So the Point of intersection is (-4,-2)

Which is option A

Step-by-step explanation:

The given system of equations is

-0.1x - 0.8y = 2              ...................(i)

0.6x - 0.5y = -1.4           ...................(ii)

Let us take equation (i) and use method of substitution for solving it

the equation (i) is

-0.1 x - 0.8y = 2

Adding 0.8y on both sides

-0.1 x + 0.8 y - 0.8 y = 2 + 0.8 y

-0.1 x = 2 + 0.8 y

Dividing both sides -0.1

\frac{-0.1 x}{-0.1}=\frac{0.8 y}{-0.1}+\frac{2}{-0.1}

x = -8 y - 20                     ..........................(iii)

Now we will use this value and put it into equation (ii) to find the value of y

Equation (ii) is

0.6 x - 0.5 y = -1.4

Put value of x

0.6(-8 y - 20) - 0.5 y =-1.4

It becomes

-4.8 y - 12 - 0.5 y = -1.4

adding 12 on both sides

-4.8 y - 0.5 y - 12 + 12 = -1.4 + 12

it becomes by solving

-5.3 y = 10.6

Dividing both sides by -5.3

\frac{-5.3*y}{-5.3}=\frac{10.6}{-5.3}

So

y = -2

Now we have the value of y putting it in equation (iii)

Equation (iii) is

x = -8 y - 20    

Putting value of y

x = -8*(-2) - 20

x = 16-20

x=-4

So the Point of intersection is (-4,-2)

7 0
3 years ago
Someone who takes care of sheep is a______. What is the name of someone who takes care of sheeps please help????
bagirrra123 [75]
They are called shepard
5 0
3 years ago
Read 2 more answers
Pls help i’ll mark brainliest!!
Luba_88 [7]
Answer: Aiden runs 187.5 meters per minute.
Explanation: Literally divide the two numbers
4 0
2 years ago
Evaluate the expression. 34⋅23
Alex17521 [72]

Answer:

784

Step-by-step explanation:

(30+4)(23+3)

7 0
3 years ago
What is the square root of -1?
lora16 [44]

Answer:

i

Step-by-step explanation:

i means imaginary because whatever you try you can't get a number which squared gets a negative number.

4 0
3 years ago
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