## Solution for problem 27 Chapter 1.5

# Each day, the number of births in the world is 92 thousand less than three times the

Intermediate Algebra for College Students | 6th Edition

Each day, the number of births in the world is 92 thousand less than three times the number of deaths. a. If the population increase in a single day is 214 thousand, determine the number of births and deaths per day. b. If the population increase in a single day is 214 thousand, by how many millions of people does the worldwide population increase each year? Round to the nearest million. c. Based on your answer to part (b), approximately how many years does it take for the population of the world to increase by an amount greater than the entire U.S. population (308 million)?

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Review Notes for Calculus I Symmetry: A graph is symmetric with respect to the y-axis if whenever (x, y) is a point on the graph then (-x, y) is also a point on the graph. Some even functions (y=x , y=x , etc.) have symmetry with respect to the y-axis. These graphs usually are parabolas (u-shaped graphs). To figure out if a graph has y-axis symmetry, then you replace all x’s with the opposite of x (ex: x would become –x). A graph is symmetric with respect to the x-axis if whenever (x, y) is a point on the graph then (x, -y) is also a point on the graph. These graphs can look like a parabola turned on its side. To figure out if a graph has x-axis symmetry, you replace all y’s with the opposite of y (ex: y wo

###### Chapter 1.5, Problem 27 is Solved

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Each day, the number of births in the world is 92 thousand less than three times the