Which equation represents the height of the purple part of the wall? о В.
A. 2 x 8 7 2 = 6 3 ft
B. 9x8* = 6 ft
ocx 10 = 6 ft
D. x 104 = 7ft

ax + by = c

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)

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