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ololo11 [35]
3 years ago
8

I GIVE BRAINLIEST! Help pls

Mathematics
1 answer:
Mashutka [201]3 years ago
8 0

Answer:

the answer is 5.5 mentions

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Which of the following equations have exactly one solution?
Tems11 [23]

Answer:

A, B, & C

Step-by-step explanation:

A: -5x +12 = -12x - 12

    +12x        +12x

    7x + 12 = -12

         -12     -12

            7x = -24                 [Divide both sides by 7 to get x]

              x = -24/7

B: −5x + 12 = 5x + 12

   -5x            -5x

    -10x + 12 = 12

            -12     -12

            -10x = 0                   [Divide both sides by -10 to get x]

                 x = 0

C: −5x + 12 = 5x − 5

    -5x           -5x

    -10x + 12 = -5

            -12      -12

           -10x = -17                  [Divide both sides by -10 to get x]

               x = 17 / 10

D: −5x + 12 = −5x − 12

    +5x           +5x

              12 ≠ -12         [The statement is false, so it isn't the correct answer]

8 0
3 years ago
Which of the following would be a possible solution to the system of inequalities given below?
Nataly [62]

Answer:

(0,5)

Step-by-step explanation:

we have

2x+3y > 12 ----> inequality A

x-y\leq 1 ----> inequality B

we know that

If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities of the system (makes true both inequalities)

Verify each ordered pair

Substitute the value of x and the value of y of each ordered pair in the inequality A and in the inequality B and then compare the results

case 1) (0,5)

For x=0,y=5

<em>Inequality A</em>

2(0)+3(5) > 12

15 > 12 ----> is true

so

The ordered pair satisfy inequality A

<em>Inequality B</em>

0-5\leq 1

-5\leq 1 ---> is true

so

The ordered pair satisfy inequality B

therefore

The ordered pair would be a solution of the system

case 2) (5,2)

For x=5,y=2

<em>Inequality A</em>

2(5)+3(2) > 12

16 > 12 ----> is true

so

The ordered pair satisfy inequality A

<em>Inequality B</em>

5-2\leq 1

3\leq 1 ---> is not true

so

The ordered pair not satisfy inequality B

therefore

The ordered pair is not a solution of the system

case 3) (0,4)

For x=0,y=4

<em>Inequality A</em>

2(0)+3(4) > 12

12 > 12 ----> is not true

so

The ordered pair not satisfy inequality A

therefore

The ordered pair is not a solution of the system

case 4) (6,0)

For x=6,y=0

<em>Inequality A</em>

2(6)+3(0) > 12

12 > 12 ----> is not true

so

The ordered pair not satisfy inequality A

therefore

The ordered pair is not a solution of the system

5 0
4 years ago
The statement explains why the ordered pair is a solution to the system of equations. Is the statement true or false?
vovangra [49]

Answer:

it is true

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A bag contains 75 marbles some red some blue the ratio of red marbles to blue marbles is 3 to 2 how many red marbles are there
Over [174]
The correct answer is 45
6 0
2 years ago
Read 2 more answers
Dr. Cheeks tries to run at least 45 rotations on her hamster wheel each week. She has already run 6 rotations. Which inequality
IRISSAK [1]

Answer: C. r+6>45

Step-by-step explanation:

Since, Dr. Cheeks tries to run at least 45 rotations on her hamster wheel each week.

If she runs r rotations then, for the value of r,  45\leq r

Since, If she has already 6 rotations

Therefore total rotation she has = r+6

Thus, if 45\leq r ⇒45

So, Option C is the correct option.




4 0
3 years ago
Read 2 more answers
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