For questions 9-11: Use the information below: A 1000-gallon oil spill has contaminated a reservoir. The company hired to clean the reservoir can remove 10% of the remaining oil each week. 9. Give the formula A = A(w) for which gives the amount of oil remaining in the reservoir after w weeks. a) A(w) = 1000(0.9)^w b) A(w) = 2000(1.9)^w c) A(w) = 1000(2.9)^w d) A(w) = 2500(0.9)^w 10. How long will it be until there are only 400 gallons of oil still in the reservoir? a) 11.8 weeks b) 10.8 weeks c) 9.7 weeks d) 8.7 weeks 11. If the cleanup company charges $7600 per week for its services, how much will it cost to remove the first 900 gallons of oil from the reservoir? a) $200,000 b) $180,000 c) $167,200 d) $178, 300
For questions 9-11: Use the information below: A 1000-gallon oil spill has contaminated a reservoir. The company hired to clean the reservoir can remove 10% of the remaining oil each week. 9. Give the formula A = A(w) for which gives the amount of oil remaining in the reservoir after w weeks. a) A(w) = 1000(0.9)^w b) A(w) = 2000(1.9)^w c) A(w) = 1000(2.9)^w d) A(w) = 2500(0.9)^w 10. How long will it be until there are only 400 gallons of oil still in the reservoir? a) 11.8 weeks b) 10.8 weeks c) 9.7 weeks d) 8.7 weeks 11. If the cleanup company charges $7600 per week for its services, how much will it cost to remove the first 900 gallons of oil from the reservoir? a) $200,000 b) $180,000 c) $167,200 d) $178, 300
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 15T
Related questions
Question
For questions 9-11: Use the information below:
A 1000-gallon oil spill has contaminated a reservoir. The company hired to clean the reservoir can remove 10% of the remaining oil each week.
9. Give the formula A = A(w) for which gives the amount of oil remaining in the reservoir after w weeks.
a) A(w) = 1000(0.9)^w
b) A(w) = 2000(1.9)^w
c) A(w) = 1000(2.9)^w
d) A(w) = 2500(0.9)^w
10. How long will it be until there are only 400 gallons of oil still in the reservoir?
a) 11.8 weeks
b) 10.8 weeks
c) 9.7 weeks
d) 8.7 weeks
11. If the cleanup company charges $7600 per week for its services, how much will it cost to remove the first 900 gallons of oil from the reservoir?
a) $200,000
b) $180,000
c) $167,200
d) $178, 300
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Algebra for College Students
Algebra
ISBN:
9781285195780
Author:
Jerome E. Kaufmann, Karen L. Schwitters
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Algebra for College Students
Algebra
ISBN:
9781285195780
Author:
Jerome E. Kaufmann, Karen L. Schwitters
Publisher:
Cengage Learning
Intermediate Algebra
Algebra
ISBN:
9781285195728
Author:
Jerome E. Kaufmann, Karen L. Schwitters
Publisher:
Cengage Learning