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never [62]
3 years ago
14

What is the solution to the system of equations below?

Mathematics
2 answers:
Ymorist [56]3 years ago
6 0

Answer:

6×+÷3=2+4×=6

3x 8x+6 =8×+y1×-2

Alinara [238K]3 years ago
3 0
To solve the system of equations, first solve for x.

Because both equations equal y, they also equal each other (rule: if a = c and b = c, than a = b)

You can then set the equations equal to each other and solve for x.

1/2x + 6 = -3/4x - 4

I want to get x onto just one side. 1/2 = 2/4. I now add 3/4 x to both sides to get this:

5/4x + 6 = -4

I then subtract 6 from each side

5/4x = -10

Finally I dive each side by 5/4

x = -8

Now to solve for y I plug in x = -8 into one equation. I’m going to use the first one.

y = 1/2(-8) + 6
y = -4 + 6
y = 2

Your solution is (-8, 2)
To double check this, plug these values into the second equation. If both sides equal each other than you have the right answer.
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Please please please helppppppppp
notka56 [123]

Answer:

Step-by-step explanation:

She added 3x and -2x, getting 5x, instead of x. She needs to pay more attention to the positive/negative signs.

6 0
3 years ago
ASAP Plz what is the value of x? Plz no joking around this is from quiz 4.09: Special Right Triangles 2
Sunny_sXe [5.5K]
Ooh this is a good one!
Firstly, let's find RT so that we can solve the top triangle.
We could actually use 3 methods to find this side: 1) trig to find RT
2) trig to find ST, then Pythagorean Theorem to determine RT
3) use the special 30-60-90 right triangle rule ... hmm, I'm going with the last because it's easiest ;)

For 30-60-90 triangles, the sides are always as follows: smallest side (opposite the 30) is s, the middle side is sSR3, and the hypotenuse is 2×s
Thus, since we have the side opposite 60, it is = sSR3, so:
s \sqrt{3}  = 2 \sqrt{3}  \\ s \sqrt{3} \div  \sqrt{3}   = 2 \sqrt{3} \div  \sqrt{3}  \\ s = 2
So now, the hypotenuse (RT) = 2s = 2(2) = 4

Secondly, we are looking at the other type of special right triangle, the 45-45-90:
The side opposite the 45s are s (remember side lengths are equal whose opposite angles are equal); and the hypotenuse is always
s \sqrt{2}
we only need QR, which is s, which is also = RT
So the answer is:
QR = x = 4

x = 4 IS THE FINAL ANSWER!!!


[ i hope by my explanations you understand how better to do special right triangles in the future] :-D
8 0
3 years ago
Read 2 more answers
What is 9 + 10? This is hard homework
Lubov Fominskaja [6]
9 + 10=21 :)
9=3 x3
10= 2 x 5
3x5=15
3x2=6
15 + 6 = 21 :)
4 0
3 years ago
7^300 chia 7 dư bao nhiêu
Pepsi [2]

Answer:

dư 0... 7^300 chia 7 đc 7^299 mà

3 0
3 years ago
Find All numbers whose absolute value is 2
Elanso [62]

Answer:

Step-by-step explanation:

Absolute Value. Absolute value describes the distance of a number on the number line from 0 without considering which direction from zero the number lies. The absolute value of a number is never negative. The absolute value of 2 + 7 is 5.

Has two solutions x = a and x = -a because both numbers are at the distance a from 0. ... An absolute value equation has no solution if the absolute value expression equals a negative number since an absolute value can never be negative.

7 0
3 years ago
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