Maudie needs to convert this scale drawing from a scale factor of 1 box=6 inches to a scale factor of 1?box=12 inches. The length in the scale drawing shown is 10 boxes. What will be the length of the boxes in the new drawing

The current length in the scale drawing is 10 boxes.

To convert the scale factor from 1 box = 6 inches to 1 box = 12 inches, we need to multiply the length by the scale factor ratio:

(12 inches)/(6 inches) = 2

So, the length of the boxes in the new drawing will be:

10 boxes * 2 = <<10*2=20>>20 boxes. Answer: \boxed{20}.