Question

2. Vinegar is known to kill 82% of germs with each application.

a) Determine an equation that relates the percent of (P) germs remaining to the number of applications (n).
b) What percent of germs is left after two applications?
c) Is it possible to eliminate all the germs? Justify algebraically or graphically.
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Answer 1

Explanation:

If 82 percent are killed....18 percent remain

a) P = .18^n

b) put '2' where 'n' is and calculate the decimal per centage

c) No....there will always be SOME remaining