Answer:
[tex]2\frac{6}{7}\approx 2.86[/tex] units.
Step-by-step explanation:
We are told that the expression [tex]4x[/tex] gives the perimeter of a square with a side length of x units.
To find the perimeter of a square with a side length [tex]\frac{5}{7}[/tex], we will substitute [tex]x=\frac{5}{7}[/tex] in our given expression for perimeter of square.
[tex]\text{Perimeter of square}=4(\frac{5}{7})[/tex]
[tex]\text{Perimeter of square}=\frac{4*5}{7}[/tex]
[tex]\text{Perimeter of square}=\frac{20}{7}[/tex]
[tex]\text{Perimeter of square}=2\frac{6}{7}[/tex]
Therefore, the perimeter of square will be [tex]2\frac{6}{7}\approx 2.86[/tex] units.
