The area of a rectangle is 228 square feet. if the length of the rectangle is 12 feet, what is the width of the rectangle

19 feet

Step-by-step explanation:

The area of a rectangle is 228 square feet and the length of the rectangle is 12 feet, the width is unknown.

Area of rectangle= 228 square feet

Length= 12 feet

Width= Unknown

Let width be represented by w

Area of a rectangle= length×width

228ft^2 = 12ft × w

w = 228/12

w = 19

This means that the width of the rectangle is 19 feet

b

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)