Question

If a rectangle has a perimeter of 70, a length of x and a width of x - 9, find the value of the length of the rectangle.

Answer 1

Answer:

Perimeter of rectangle is 70cm

2(x + x - 9) = 70

4x=88

x=44

Answer 2

Answer:

$\huge{\boxed{\rm{\red{Length=22units}}}}$

Step-by-step explanation:

Given:-

a rectangle has a perimeter of 70, a length of x and a width of x - 9,

To find:-

find the value of the length of the rectangle.

Solution:-

Length of the rectangle=X

Width of the rectangle =X-9

Using formula

Perimeter of the rectangle=2(l+w) units

=>2(X+X-9)

=>2(2X-9)

=>4X-18 units

According to the given problem

Perimeter of the rectangle=70 units

=>4X-18=70

=>4X=70+18

=>4X=88

=>X=88/4

=>X=22

Answer:-

Length of the rectangle=22 units