You are making a scale drawing of a table. the table length is 2.5 feet and your scale is two inches = five feet. which of the following proportions is correct for solving the scale length for the table in the drawing?
a) 2/2.5 = x/5
b) 5/2.5 = x/2
c) 2/5 = x/2.5

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)