Select two statements that can form a biconditional. If 4v + 10 = 0, then 6w = 3.
If 3w = 6, then 4v + 10 = 0.
If 10v + 4 = 0, then 3w + 6 = 0.
If 6W 3, then 4v 10.
if 3w + 6 = 0, then 10v + 4 = 0.
if 4v = 10, then 3w = 6.
^ answer choices

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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)