Question

The expression 4x4x4, x gives the perimeter of a square with a side length of xxx units. what is the perimeter of a square with a side length of \dfrac57 ​7 ​ ​5 ​​ start fraction, 5, divided by, 7, end fraction units?

Answer 1

The expression 4x, gives the perimeter of a square with a side length of x units.
 the perimeter of a square with a side length of x=5/7 is
 4(5/7)=20/7=2.86
 the perimeter of a square is
 2.86

Answer 2

Answer:

$2\frac{6}{7}\approx 2.86$ units.

Step-by-step explanation:

We are told that the expression $4x$ gives the perimeter of a square with a side length of x units.

To find the perimeter of a square with a side length $\frac{5}{7}$, we will substitute $x=\frac{5}{7}$ in our given expression for perimeter of square.

$\text{Perimeter of square}=4(\frac{5}{7})$

$\text{Perimeter of square}=\frac{4*5}{7}$

$\text{Perimeter of square}=\frac{20}{7}$

$\text{Perimeter of square}=2\frac{6}{7}$

Therefore, the perimeter of square will be $2\frac{6}{7}\approx 2.86$ units.