The length of a rectangle is 12 cm.
What is the width if the area is 72 cm?

Width of the rectangle = 6cm

Step-by-step explanation:

Let width be b

Area of rectangle = 72cm²

length× width = 72cm²

12×b= 72

b= 72/12

b= 6cm

Width = 6 cm.

Step-by-step explanation:

The formula for are is length x width. You have the length, which is 12. This gives you this equation...

12 x ? = 72 cm.

If you use the inverse operation (opposite) of multiplication, you divide both sides by 12, giving you 6 cm. To double check, do 6 x 12, which equals 72.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb