Question

HELPPPPPPPP

Jamie went on vacation ( a long one) and asked Laura to take care of her plants. Unfortunately, Laura isn't good with plants and 5% of the plants die each week. How long will it t take for half of the plants to be dead she starts with 30 plants????

Answer 1

1/2(30)=30(1-0.05)^x
15=30(1-0.05)^x
1/2=0.95^x
X=Log(1/2)/log(0.95)
X==13.5 weeks