86. Populations of Minorities in the United States The current and estimated resident populations, y, (in percent) of Black and Spanish/Hispanic/Latino people in the United States for the years 1990-2050 are modeled by the following linear equations. y = 0.0515x + 12.3 Black y = 0.255x + 9.01 Sp./Hisp./Lat. In each case, x represents the number of years since 1990. (Source: U.S. Census Bureau.) (a) Solve the system to find the year when these population percents were equal. (b) What percent of the U.S. resident population will be Spanish/Hispanic/Latino in the year found in part (a) (c) Graphically support the analytic solution in part (a). (d) Which population is increasing more rapidly?

86. Populations of Minorities in the United States The current and estimated resident populations, y, (in percent) of Black and Spanish/Hispanic/Latino people in the United States for the years 1990-2050 are modeled by the following linear equations. y = 0.0515x + 12.3 Black y = 0.255x + 9.01 Sp./Hisp./Lat. In each case, x represents the number of years since 1990. (Source: U.S. Census Bureau.) (a) Solve the system to find the year when these population percents were equal. (b) What percent of the U.S. resident population will be Spanish/Hispanic/Latino in the year found in part (a) (c) Graphically support the analytic solution in part (a). (d) Which population is increasing more rapidly?

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 17EQ

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