All categories

3 years ago

The sum of a number and 12

Mathematics

1 answer:

12345 [234]3 years ago

7 0

X+12=y ??
Is that what you were looking for? Very confused

You might be interested in

HELP 30 POINTS!!!!!!!!!!!!!!!!!!!!! Please explain this!!!

finlep [7]

First, multiply the first equation by 3 to get:

$3x+3y=-6$

Then, add the two equations together to get

$8x=16$

We can follow that x=2. Plugging in x=2, we get that y=-4.

Therefore, the solution of (2,-4)

7 0

4 years ago

Read 2 more answers

2(-3x + 4) + 3x – 3 = -29 Submit Answe

ivolga24 [154]

Answer:

exact form:34/3

decimal form:11.3333333333

mixed number form: 11 1/3

Step-by-step explanation:

6 0

4 years ago

Which constant number would be an to both sides of the equation rn order to complete the square for the quadratic function 1=x^2

AnnZ [28]

Answer:

k = 9

Step-by-step explanation:

Given

$1= x^2 - 6x$

Required

The perfect number

The coefficient c of x in the above equation is:

$c = -6$

Divide by 2

$c/2 = -3$

Square both sides

$(c/2)^2 = 9$

Hence, the constant to add is:

$k = 9$

8 0

3 years ago

Solve the equation for x^2= 625

docker41 [41]

Answer:

x = ±25

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Multiple Roots

Step-by-step explanation:

Step 1: Define

x² = 625

Step 2: Solve for x

Square root both sides: x = ±25

Step 3: Check

Plug in x into the original equation to verify it's a solution.

x = -25

Substitute in x: (-25)² = 625
Exponents: 625 = 625

Here we see that 625 does indeed equal 625.

∴ x = -25 is a solution to the equation.

x = 25

Substitute in x: 25² = 625
Exponents: 625 = 625

Here we see that 625 does indeed equal 625.

∴ x = 25 is a solution to the equation.

8 0

3 years ago

Who ever complete this gets brainlist and i WILL remember to give you

Romashka [77]

Answer:

1. 6

2. There will be two middle numbers. 18 and 4. Add them

(18+4)=22

Now divide by 2

(22/2)

Ans. 11

3. There will be two middle numbers. 50 and 30. Add them

(50+30)=70

Now divide by 2

(70/2)

Ans. 35

4. 26

5. 76

6. There will be two middle numbers. 11 and 10. Add them

(11+10)=21

Now divide by 2

(21/2)

Ans. 10.5

7. There will be two middle numbers. 5 and 1. Add them

(5+1)=6

Now divide by 2

(6/2)

Ans. 3

8. There will be two middle numbers. 2 and 4. Add them

(2+4)=6

Now divide by 2

(6/2)

Ans. 3

║

((7, 15, 12, 9, 7))

Mean: =50/5 Ans. 10

Mode: = (7, 7, 9, 12, 15) Ans. 7

Median: Ans. 12

((10, 8, 4, 5, 8, 5, 7))

Mean: =47/7 Ans. 6.71

Mode: = (4 , 5 , 5 , 7 , 8 , 8 , 10) Ans. 5 and 8

Median: (5+8) =13/2 Ans. 6.5

((4 , 8 , 11, 11, 12, 12, 12, 12,)

Mean: 82/8 Ans. 10.25

Mode: Ans. 12

Median= (11+12)= 23/2 Ans. 11.5

((7, 5, 11, 7, 12, 8, 6, 9, 7))

Mean: 72/9 Ans. 8

Mode: (5, 6, 7, 7, 7, 8, 9, 11, 12) Ans. 7

Median: Ans. 12

4 0

3 years ago