The length of a rectangle is one inch less than three times it's width. if the perimeter of the rectangle is 54 inches, find the length.

l = 20

Step-by-step explanation:

set up a system of equations

l = 3w -1

54 = 2l + 2w

substitute

54 = 2(3w-1) + 2w

56 = 8w

w = 7

l = 3 *7 -1

l = 20

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

30005

yes ok