Intermediate Algebra – Student Workbook – Second Edition 2013

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$Lesson 2a – Assessment - Scottsdale Community College - Math Blog$

Lesson 6a - Exponents and Rational Functions Practice Problems 8. Harkins Theaters offers $1.50 soft drink refills every time you bring your 2013 Harkins Loyalty Cup to the theater. You can purchaser the Loyalty Cup for $5. 1.5x 5 The function C( x) gives the average cost (in dollars) per refill with the Loyalty x Cup, where x is the number of soft drink refills purchased. a) Determine C (1) , and write a sentence explaining the meaning of your answer. b) Complete the table below. x 1 2 3 4 5 C (x) c) How many refills must you purchase in order to reduce the average cost to $2 per refill? d) Give the equation of the horizontal asymptote of C (x) , and write a sentence explaining its significance in this situation. Scottsdale Community College Page 258 Intermediate Algebra
Lesson 6a - Exponents and Rational Functions Practice Problems 9. An application of a rational function is T = (AB)/(A+B),which gives the time, T, it takes for two workers to complete a particular task where A & B represent the time it would take for each individual worker to complete the identical task. a) The monthly reports are due and the department manager has decided to try and accelerate the completion of the report by assigning a team of two workers the task. Mary has completed the monthly reports in an average of 6 hours over the past few months. John, who had worked in Mary's capacity prior to a change in assignments, used to complete the task in 8 hours. How quickly will Mary and John finish the report if they work together? In this problem, Mary = A = 6 and John = B = 8. b) The very next month, both Mary and John are out sick. The manager knows that Skip can do the reports in 12 hours working alone, but the manager needs the work done in 4 hours. He needs to choose a staff member to work with Skip. How quickly would the other staff member have to complete the report working alone if the two hope to complete the report in 4 hours? Let A = 12 (Skip's time) Let T = 4 c) Sara takes 3 hours longer to paint a floor than it takes Katie. When they work together, it takes them 2 hours. How long would each take to do the job alone? Sara = A = (X+3) and Kate = B = X Scottsdale Community College Page 259 Intermediate Algebra
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Scottsdale Community College Interm
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Table of Contents Lesson 1a - Intro
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Lesson 1a - Introduction to Functio
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Lesson 1b - Linear Equations In the
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Lesson 1b - Linear Equations Mini-L
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Lesson 2b - Functions and Function
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Lesson 3a - Introduction to Exponen
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Lesson 4a - Introduction to Logarit
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Lesson 4b - More on Logarithms This
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Lesson 4b - More on Logarithms Mini
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Lesson 4b - More on Logarithms Prac
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Intermediate Algebra – Student Workbook – Second Edition 2013

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