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Public School Teacher - Annual Salary - Algebra

by Sha
(Atlanta, GA)










































problem #1


the expression: 553.7x+27,966

can be used to approximate the average annual salary in dollars of public school teacher in the year 1985+x

1.what was the average teacher's salary in 1993?

2. in which year will the average salary reach $45,000?


problem #2


the price of a stock on friday was $39. on the following monday, the price went up $3, on tuesday, it went down $5, and on wednesday, it went down another $2. what is the price of the stock then?

Comments for Public School Teacher - Annual Salary - Algebra

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Mar 13, 2012
School Teacher Salary & Stock Price
by: Staff


Question:

by Sha
(Atlanta, GA)


problem #1


the expression: 553.7x+27,966

can be used to approximate the average annual salary in dollars of public school teacher in the year 1985+x

1.what was the average teacher's salary in 1993?

2. in which year will the average salary reach $45,000?


problem #2


the price of a stock on friday was $39. on the following monday, the price went up $3, on tuesday, it went down $5, and on wednesday, it went down another $2. what is the price of the stock then?



Answer:

problem #1


1.what was the average teacher's salary in 1993?

x = 1993 - 1985

x = 8


Salary = 553.7 * x + 27,966

Salary = 553.7 * 8 + 27,966

Salary = $32,395.60


2. in which year will the average salary reach $45,000?

Salary = 553.7 * x + 27,966

45,000 = 553.7 * x + 27,966

45,000 - 27,966 = 553.7 * x + 27,966 - 27,966

17,034 = 553.7 * x + 0

17,034 = 553.7 * x

17,034 / 553.7 = 553.7 * x / 553.7

17,034 / 553.7 = x * ( 553.7 / 553.7)

17,034 / 553.7 = x * (1)

17,034 / 553.7 = x

30.764 = x

Year = 1985 + x

Year = 1985 + 30.764

Year = 2015.76

Year = 2016



problem #2


the price of a stock on friday was $39. on the following monday, the price went up $3, on tuesday, it went down $5, and on wednesday, it went down another $2. what is the price of the stock then?

Price = 39 + 3 - 5 - 2

Price = $35





Thanks for writing.

Staff
www.solving-math-problems.com



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