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Week 2 Written Assignment

# Week 2 Written Assignment - Week 2 Written Assignment 1...

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Week 2 Written Assignment 1 Answer the following questions. First, save this file to your hard drive by selecting Save As from the File menu. Click the white space below each question to maintain proper formatting. Use Equation Editor to write mathematical expressions and equations. Show your work (calculations and explanation) for every problem. The credit will not be given if work is not shown. Problem #1 (10 points) Business and finance. The cost, in dollars, of typing a term paper is given as 3 times the number of pages plus 20. Use y as the number of pages to be typed and write a polynomial to describe this cost. Find the cost of typing a 50-page paper. The cost of typing a paper with y pages is P. Therefore, P=3y+20 substituting y=50, P=3(50)+20, P=150+20 answer is P=170 so the cost is \$170 to type a 50 page paper. Problem #2 (10 points) Geometry. If the sides of a square are decreased by 2 cm, the area is decreased by 36 cm 2 . What were the dimensions of the original square? Area of a square= s*s, where s is the length of a side. We know from the question that: S2-36=(s-2)(s-2), s2=s2-4s+4+36, 4s=40, s=10 so the dimensions of the original square are 10 by 10. Problem #3 (10 points) Business and finance. The relationship between the number of calculators x that

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