Out of 3 Mr. Alvarez makes a walkway
cement slabs. He uses 14 cubic
feet of cement to make the walkway. Each square slab has a volume
of 4 cubic feet.
cubic feet of cement is the middle slab?
How many

-3.396 = -3.4

-0.708 = -0.7

0.304 = 0.3

0.955 = 1

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)