Four students all took a different approach to solve the equation below. 3 students did something correctly, but one student made a mathematical error. Choose the student who made a mistake. -9+3(4x-5)=21 A)Jesus: Divide everything by 3 B)Kim: Add 5 to both sides C)David: Add 9 to both sides D) Sonja: Distribute the 3

meeting id is 79939285299

password is 123456a

Step-by-step explanation:

starts meeting id

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)