# Math

posted by michelle

a family of 100 ants invades your home. if its population increases at a rate of 20% per week, in how many weeks will there be 200 ants? 400 ants? and 800 ants?

1. Scott

n = 100 (1 + .20)^w

plug in n (number of ants), solve for w

log(n/100) = w log(1.2)

2. michelle

thank you

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