Tom, sally, bob, and jill ran a race. toms time was 12.03 seconds, sally's was 12.284 seconds, bobs was 12.62 seconds, and jills was 12.9 seconds. in what order did they finish? who won?

1.Tom

2.Sally

3.Bob

4.Jills

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)