Question

The length of each side of a square increases by 2.5 inches to form a new square with a perimeter of 70 inches. The length of each side of the original square was     X    inches.

Answer 1

your answer will be 175 cause you multiply 2.5 and 70

Answer 2

Answer:

The length of each side of the original square was $15$ inches

Step-by-step explanation:

Let

x------> the length side of the original square

we know that

The perimeter of a square is equal to

$P=4b$

where

b is the length side of the square

In this problem

$b=(x+2.5)\ in$

$P=70\ in$

substitute

$70=4(x+2.5)$

solve for x

$70=4x+10$

$4x=70-10$

$x=60/4=15\ in$