The model represents an equation . What is the solution for this equation . Please help I’ll mark you as brainliest if correct

Mathematics

1 answer:

Gala2k [10]3 years ago

6 0

Answer:

x=3

Step-by-step explanation:

4x+6=18

4x=18-6

4x=12

x=12÷4

x=3

You might be interested in

Please help ASAP and explain the answer, thank you

jonny [76]

Answer:

Step-by-step explanation:

1) x² - 8x + 5 = 0

2) No subtract 5 from both sides

x² - 8x + 5 - 5 = 0 - 5

x² - 8x = -5

3) Now find (8/2) = 4. Add 4² = 16 to both sides

x² - 8x + 16 = -5 + 16

x² - 8x + 16 = 11

4) (x - 4)² = 11

5) Take square root both sides

x - 4 = ±√11

x = 4 ±√11

6 0

3 years ago

In how many ways can five children posing for a photograph line up in a row?

Shtirlitz [24]

Answer:

number of ways = 120

Step-by-step explanation:

The number of ways five children can pose for a photograph line up in a row is given by the number of permutations of 5 elements in 5 different positions (positions in the line), then

number of ways = number of permutations of 5 elements = 5! = 5 * 4 * 3 * 2 * 1 = 120

Since the first children that occupies the line can be on any of the positions (5 positions) , but then the second one can choose any of the 4 remaining positions (since the first children had already occupied one) , the third can choose 3 ... and so on.

5 0

3 years ago

:( <br> A=?<br> B=?<br> please help me

Helen [10]

a= 16x+16

b= 40x + 15

Step-by-step explanation:

We know that perimeter of a rectangle is

$2(l + b)$