If the value of y varies inversely with x , which function represents the relationship between x and y if y = 48 when x = 3? A. Y= 144/x

B. Y= 16/x

C. Y= x/16

D. Y= x/144

Explanation is in the file

cutt.ly/zxt1ipy

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)