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Vikentia [17]
3 years ago
5

Help me with this please

Mathematics
1 answer:
Hatshy [7]3 years ago
5 0

Answer: (-6.5 , 6)

-18 + 5 / 2 = -6.5

-1 + 13 / 2 = 6

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Given the system of equations, what is the x-coordinate of the solution?
Nimfa-mama [501]
Answer: Choice C) -11

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

Explanation:

The first equation given is y = 3 - 1/2x
In other words, y is the same as 3 - 1/2x. 
We can replace y in the second equation with 3 - 1/2x
This is known as substitution (think of a substitute teacher who is a temporary replacement for your teacher)

Doing this leads to...
3x+4y = 1
3x+4*y = 1
3x+4*( y ) = 1
3x+4*( 3 - 1/2x ) = 1 <<--- y has been replaced with 3-1/2x
3x+4*(3) +4*(-1/2x) = 1
3x+12-2x = 1
3x-2x+12 = 1
x+12 = 1
x+12-12 = 1-12 <<-- subtracting 12 from both sides
x = -11
Which is why the answer is choice C) -11
6 0
3 years ago
Read 2 more answers
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Answer:

Answer

Answer is option A gained 5 points

Step-by-step explanation:

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4 0
3 years ago
What is the slope of 2/4 -4/-4
AVprozaik [17]
The answer should be 4/3!
7 0
3 years ago
Consider the attached function - The values are?
kow [346]
To find the value f(-7), we just need to evaluate the function at x=-7. In other words, we are going to replace x with -7 in the function:
f(x)=( \frac{1}{2} )^x
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Similarly, to find the value of f(5), we just need to evaluate the function at x=5. In other words, we are going to replace x with 5 in the function:
f(x)=( \frac{1}{2} )^x
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Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
FrozenT [24]
Can you please take a picture of the question? I can’t see anything
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