### Solve the problem on percentages

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##### Reference no: EM1315843

Question: Let V (t) be the number of visitors (in million) on the year that is t years since 1960. Use the Linear Regression features of graphing calculator and the information on the table given below.

 Visitors to the Grand Canyon Year Average monthly participation (million) 1960 1.2 1970 2.3 1980 2.6 1990 3.8 2000 4.8

A model for United State population is U(t) = 0.0068t2 + 2.17t + 180.41, where U(t) is the United State population  (in million) at t years since 1960. Let P(t) be the percentage of Americans who visit the Grand Canyon in the year that is t years since 1960. Find an equation for P. Find P(50).

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