The maximum width of a rectangle with a perimeter no greater than 70 centimeters and a length of 30 centimeters is blank centimeters

To find the maximum width of the rectangle, we can use the formulas for the perimeter and area of a rectangle.

Perimeter = 2(length + width) and Area = length * width

Given that the length is 30 centimeters and the perimeter should be no greater than 70 centimeters, we can set up the equation:

70 = 2(30 + width)

Simplifying the equation:

70 = 60 + 2width
10 = 2width
width = 5

Therefore, the maximum width of the rectangle is 5 centimeters.