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Phebe
 one year ago
Best ResponseYou've already chosen the best response.1btw i think the answer is C

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1In 2010, the population is p(0). In 2011, 1 year after 2010, the population is p(0) + 4000 * 1 In 2012, 2 years after 2010, the population is p(0) + 4000 * 2 In year the year that is x years after 2010, what is the population?

Phebe
 one year ago
Best ResponseYou've already chosen the best response.1i can tell the answer is C

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Let's see if C is correct. The year 2025 is 15 years after 2010, so x = 15. C. p  15 = 4(x  450) p  15 = 4(15  450) p  15 = 4(435) p  15 = 1740 p = 1,725 Since p is the population is thousands, using choice C, you get a population of 1,725,000 in 2025, but we are told the population in 2025 is 450,000, so choice C is not correct.

Phebe
 one year ago
Best ResponseYou've already chosen the best response.1ohh good thing i know its not C because i was just gonna put that

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Try each choice with x = 15, and find p. The correct choice has to give you a value of p of 450,000.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Of course, we can also figure out what the correct answer is by figuring out the equation ourselves.

Phebe
 one year ago
Best ResponseYou've already chosen the best response.1the only possible answer it could be is out of B and A im going with A

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Did you do what I mentioned above. Solve for p using x = 15. What do you get for p? Here is choice A. p = 4x + 50 p = 4(15) + 50 p = 60 + 50 p = 110 p = 110 means 110,000 people. We were told the population in 2025 is 450,000, so choice A. does not work.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now let's try B. p  450 = 4(x  15) p  450 = 4(15  15) p  450 = 0 p = 450 Here we do get p = 450, which means a population of 450,000 in the year 2025, so this choice looks good.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Choice D. p = 4x + 15 p = 4(15) + 15 p = 60 + 15 p = 75 This means 75,000 people in 2025, so D is incorrect.
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