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Lana71 [14]
3 years ago
9

NEED HELP NOW!!!!!!!!!!!!!!

Mathematics
2 answers:
Svetach [21]3 years ago
7 0
Solve the second equation for x.  x = 2y - 8.  Now sub this into the first equation to get 3(2y-8)-6y=-12, and simplifying you will get 6y - 24 - 6y = -12.  6y - 6y eliminates the term, leaving us with -24 = -12, which of course is an untrue statement.  This is what we refer to as an inconsistent system.  These 2 lines, when solved for y give us the same slope.  That is why there is no solution.  A solution exists where the lines intersect.  Lines with identical slopes do not intersect.  What we know about the 2 lines is that they are parallel.
uysha [10]3 years ago
5 0
(a).
IF you were to solve the first equation for 'y', you'd get  Y = x/2 + 4 .
and
IF you were to solve the second equation for 'y', you'd get  Y = x/2 + 2 .

Well, look.  If those two quantities are both equal to 'y',
then they must be equal to each other, so we can write  x/2 + 4  =  x/2 + 2 .

Subtract  x/2  from each side:  4 = 2 .

Is there any value of 'x' that can make 4 equal to 2 ?
No.  There is no value of 'x' that can make 4 equal to 2 .

This tells us that (x/2 + 4) can never be equal to (x/2 + 2) .

And THAT tells us that the original two equations (that these came from)
can't both be equal at the same time ... another way of saying that the
pair has no solution.

(b).
Do you remember what you learned about (Y = mx + b) ?
The slope and the intercept and all that stuff ?

Great ! 
Then you remember that the slope of (Y = x/2 + 4) is 1/2,
AND the slope of (Y = x/2 + 2) is also 1/2 .

The original two equations both have the same slope.
Their graphs are PARALLEL lines ! 
THAT's why they have no solution.
Because parallel lines never intersect.

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A movie theater has a seating capacity of 289. The theater charges $5.00 for children, $7.00 for students, and $12.00 of adults.
torisob [31]

Answer:

Number of children in theater   = 94

Number of students   = 46

Number of adults in theater= 47

Step-by-step explanation:

Total seating capacity in the theater = 187

Let us assume the number of students in the theater = m

and assume  the number of children in the theater = 2k

So, the number of adults in theater = Half of number of children = 2k/2 = k

⇒ Number of ( Adults + Children + students) = 187

⇒ k  + 2k + m =  187, or 3k + m = 187

Step-by-step explanation:

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3 years ago
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Charra [1.4K]

Answer: x =  - y + 4

Step-by-step explanation: u juss Add -2y to both sides and Step 2: Divide both sides by 2.

5 0
3 years ago
Can someone help me please and thank you ❤️
ASHA 777 [7]

Answer:

I think it would be C

He gor A because he thought that since there waz 3 containers that you would just add 2 because there was 3 containers.

7 0
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Step-by-step explanation:

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