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Nostrana [21]
3 years ago
8

Solving Systems with Substitution x+y=-2 -4x+y=3

Mathematics
1 answer:
Snezhnost [94]3 years ago
4 0
Y=4x+3
x+4x+3=-2
5x=-5
x= -1
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<img src="https://tex.z-dn.net/?f=%28y%20-%201%29%28y%20%2B%203%29" id="TexFormula1" title="(y - 1)(y + 3)" alt="(y - 1)(y + 3)"
m_a_m_a [10]
Sense there's only a y, you'd assume y is 1 or 1y.

you'd make the 1 a negative 1 to get rid of the subtraction sign.

you'd add together the 2 ys making it 2y. then add -1 + 3, which would be 2.

so, the answer would be 2y + 2.
7 0
3 years ago
Bob brings home 156.40 his gross is 184.00 what percentage do he bring home​
Tanzania [10]

Answer:

85%

Step-by-step explanation:

To find the percentage we will have to start by dividing the amount he brings home by the gross.

156.4 / 184 = 0.85

By doing this, we get the answer in decimal form, which is not what we want.

Multiply it by 100 to convert it into a percent.

0.85 x 100 = 85.

Now, we know that he brings home 85% of his gross.

5 0
3 years ago
Which expressions are equivalent to 7 (negative three-fourths x minus 3)? Select two options. Negative 5 and one-fourth x minus
Artist 52 [7]

Answer:

it  is b

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A.) which of these expressions is equivalent to 4 x x
Law Incorporation [45]

Answer:

a) The correct option is C: 4x

b) The correct option is B: 2x

Step-by-step explanation:

a) Usually when we have a real number multiplying a variable, we do not need to write the multiplication symbol.

So instead of writing:

4×x

We can write:

4x

And this will be equivalent.

Then in this case the correct option is C.

b) We know that if we have the multiplication of A by n, this will be equivalent to add A n times.

Then if we have the sum of A, for example, 4 times, we have:

A + A + A + A

And this can be written as 4*A

In this case, we have the expression x + x.

So we are adding x two times, then this can be written as: 2*x, or, as we said earlier, this also can be written as 2x.

Then the correct option is option B.

8 0
2 years ago
What is the equation of the line that goes through (8,-2) and (0,14​
Yuri [45]

Answer:

13

Step-by-step explanation:

4 0
3 years ago
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