Answer:
or 
Step-by-step explanation:
The question in English is
During the week 72 children will visit the park. For each child is prepared a rectangular box, in which to arrange what will be collected during the visit. Each box is 18 cm long and 12 cm wide. How long is the strip of cardboard that is used to make the edge of all boxes.
Let
x ----> the length of the box
y -----> the width of the box
we know that
The perimeter of the box is equal to
we have
step 1
Find the perimeter of one box
step 2
Find the perimeter of 72 box
Multiply the perimeter of one box by 72
Convert to meters
Divide by 100
Answer:
Width = 2x²
Length = 7x² + 3
Step-by-step explanation:
∵ The area of a rectangle is 
∵ Its width is the greatest common monomial factor of 
and 6x²
- Let us find the greatest common factor of 14 , 6 and 
, x²
∵ The factors of 14 are 1, 2, 7, 14
∵ The factors of 6 are 1, 2, 3, 6
∵ The common factors of 14 and 6 are 1, 2
∵ The greatest one is 2
∴ The greatest common factor of 14 and 6 is 2
- The greatest common factor of monomials is the variable with
the smallest power
∴ The greatest common factor of and x² is x²
∴ The greatest common monomial factor of and 6x² is 2x²
∴ The width of the rectangle is 2x²
To find the length divide the area by the width
∵ The area =
∵ The width = 2x²
∴ The length = ( ) ÷ (2x²)
∵ ÷ 2x² = 7x²
∵ 6x² ÷ 2x² = 3
∴ ( ) ÷ (2x²) = 7x² + 3
∴ The length of the rectangle is 7x² + 3
Answer:
He needs to learn the disciplinary principal
Step-by-step explanation:
A: Multiply by 12
The 1/2 is already multiplied by the bh, so in order to "undo" that multiplication, you have to do the opposite, which is to divide.
Answer: My guess is 15.5 = x
Step by step explanation:
2x + 21
Then divide 2 each side
X + 15.5
