After t days of advertisements for a new laundry detergent, the proportion of shoppers in a town who have seen the ads is 1 − e−0.05t. How long must the ads run to reach 80% of the shoppers? (Round your answer to the nearest whole number.) days

After t days of advertisements for a new laundry detergent, the proportion of shoppers in a town who have seen the ads is 1 − e−0.05t. How long must the ads run to reach 80% of the shoppers? (Round your answer to the nearest whole number.) days

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter7: Exponents And Exponential Functions

Section: Chapter Questions

Problem 34PT

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Question

After t days of advertisements for a new laundry detergent, the proportion of shoppers in a town who have seen the ads is

1 − e^−0.05t.

How long must the ads run to reach 80% of the shoppers? (Round your answer to the nearest whole number.)

days

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