Plz hurry its timeddd
the perimeter of a square is 80-64y units. which expression can be used to show the side length of one side of the square?
a. 16(5-4y): each side measures 5-4y units.
b. 16y(5-4): each side measures 5-4 units.
c. 4(20-16y): each side measures 20-16y units.
d. 4y(20-16): each side measures 20-16 units.

Option C. 4(20-16y): Each side measures 20-16y units.

Step-by-step explanation:

we know that

The perimeter of a square is equal to

where

b is the length side of the square

we have

substitute the given value in the formula

solve for b

Divide by 4 both sides

Rewrite the expression

Alternative Method

we have

Factor 4

so

Each side measures (20-16y) units.

the 1st digit is in the 100s n its 1

step-by-step explanation:

3,589÷18 = 199.389

so the first digit of the quotient is in the 100s n its 1

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.