Abag contains 5 gray tiles and 2 blue tiles. jenny reached into the bag and picked a tile randomly, and then without replacing it, picked a second tile. if you know that she picked a blue tile with her first pick, what is the probability that she picked a gray tile with her second pick? a) 1 6 b) 1 7 c) 5 6 d) 5 7

answer: i think it's a

step-by-step explanation:

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)