Answer: Choice C) -11

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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

Point A(4, 2) is translated according to the rule (x, y) -> (x + 1, y – 5) and then reflected across the y-axis. a) In which

Rzqust [24]

<span>a) In which quadrant of the coordinate plane is point A located? Quadrant I

b) what are the coordinates of translated point A'? in which quadrant of the coordinate plane is point A located? (5,-3) ; Quadrant IV

c) what are the coordinates of reflected point A''? in in which quadrant of the coordinate plane is point A located? (-5,-3) ; Quadrant III

Pls. see attachment. </span>

7 0

3 years ago

Use Pythagorean theorem to find the height of the missing section

kati45 [8]

Answer:

What is the missing section?

I will edit the answer after you tell me

Step-by-step explanation:

4 0

3 years ago

How. i dont know this

-Dominant- [34]

Times the two number you have and I'll have your answer then add them all up then your answer will be 86.23

4 0

4 years ago

What is the next number? 3,6,17,42,87,158,...,...​

What is the next number? 3,6,17,42,87,158,...,...