How many 2x4 foot tiles are needed for 48 square feet?

The number of  (2 X 4 ) foot tiles  needed for 48 square feet is 6.

Step-by-step explanation:

The dimensions of the small tiles =  2 ft x 4 ft

Area that needed to be covered by tiles = 48 sq feet

Now, Area of 1 tile  = LENGTH X WIDTH

                                 = 2 ft x 4 ft = 8 sq ft

Now,

=

or, Number of tiles required = 6

Hence, the number of  (2 X 4 ) foot tiles  needed for 48 square feet is 6.

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: