5? 10 5 5, dot, 10, start superscript, 5, end superscript is how many times as large as 1\cdot10^51? 10 5 1, dot, 10, start superscript, 5, end superscript?

  5 times as large

Step-by-step explanation:

The ratio of the two numbers tells you how many times as large one is as the other:

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)