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Leokris [45]
2 years ago
6

Solve the system of equations by substitution.

Mathematics
2 answers:
Vlad1618 [11]2 years ago
5 0
The answer is A.
2 x -3 = -6
3 x 3 = 9
now add those up
-6+9=3
Setler79 [48]2 years ago
4 0

Answer:

the answer is Option A) ( -3, 3)

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

( -3, 3)

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When I am multiplied by myself, I
cestrela7 [59]

Answer:

21 & 22

42.25 ÷ 2 = 21.125.

21.125 rounded to the two nearest whole numbers is 21 and 22.

21 and 22 are the closest integers to 21.125.

The answer is 21 and 22.

Hope it helps!

6 0
3 years ago
Read 2 more answers
The problem is in the picture :)
frozen [14]

Answer:

Last option: 4

Step-by-step explanation:

The quadratic equation simplified: x^2-4x=-\frac{7}{2} has the form:

ax^2+bx=c

In this case, you can identify that "a", "b" and "c" are:

a=1\\b=-4\\c=-\frac{7}{2}

To solve this quadratic equation  by completing the square, Carlos should add (\frac{b}{2})^2 to both sides of the equation. This is:

(\frac{-4}{2})^2=(-2)^2=4

Then:

x^2-4x+4=-\frac{7}{2}+4

Therefore you can observe that the number he should add to both sides of the equation is: 4

8 0
3 years ago
Solve7+x/4=5 For x please show steps
seraphim [82]

7 + x/4 = 5 (common denominator is 4)

4(7+x/4) = 4 x 5  (distribute the 4 though parenthesis)

4 *7 +4x/4 = 4 x 5

4 * 7 + x = 4 x 5

28 + x = 4 x 5

28 + x = 20 (subtract the 28)

x = 20 - 28

x = -8


8 0
3 years ago
Read 2 more answers
Need answers as soon as possible please.
AysviL [449]
B
explanation: cuz i said so





you're welcome
3 0
1 year ago
Read 2 more answers
Office supplies had a normal starting balance of $75. there were debit postings of $80 and credit postings of $60 during the mon
Katena32 [7]

Answer:

I think it’s 95 debit but it could be credit

Step-by-step explanation:

75 + 80 = 155

155 - 60 = 95

5 0
3 years ago
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