Same amount of pure water evaporates

Assignment Help Mathematics
Reference no: EM131980309

A lake has a volume of 10^8 m^3. A river flows into the lake at the rate of 3×10^5 m^3/day.

The same amount of pure water evaporates from the lake each day, so the volume of the lake does not change. The river contains 7 % pollution. The lake is initially unpolluted.

(a) What is the percentage pollution in the lake after t days?  __________% 

(b) When does the pollution in the lake reach 1%? after ______ days

Reference no: EM131980309

Questions Cloud

Times the number of adults : An elementary school buys tickets for a field trip to the zoo. The number of children going on the field trip is 3 more than 8 times the number of adults.
What is the probability of being a winner : The Sad State Lottery requires you to select a sequence of four different numbers from 0 through 55. (Order is important.)
Find the probability of the event : If you pick three burritos at random, find the probability of the given event. (Round your answer to three decimal places.)
Describe the pathophysiologic progression of the infection : Describe the pathophysiologic progression of the infection into pneumonia and two medical/nursing interventions that would be helpful in treating the patient.
Same amount of pure water evaporates : The same amount of pure water evaporates from the lake each day, so the volume of the lake does not change. The river contains 7 % pollution.
How many sets of four marbles include : 1. A bag contains three red marbles, four green ones, one lavender one, two yellows, and six orange marbles. HINT [See Example 7.]
Why is unethical to tell people that they are strong : Why is it unethical to tell people that they are strong when attempting to get their assistance with lifting a heavy object?
Discuss productivity and profitability analysis : MGT104 Introduction to Applied Marketing - What are 2 models we can use to carry out a competitor analysis? Complete one of these for Lovely Linens.
Why do english courses not teach both ways : Why do suppose people write one way and speak to people a different way? Why do English courses not teach both ways?

Reviews

Write a Review

Mathematics Questions & Answers

  What is the size of the population after hours

A certain bacteria population is known to quadruple every 150 minutes. Suppose that there are initially 120 bacteria.

  Continuous r.v., exponenetial, r.v, mean and variance

Random Variables : Continuous R.V., Exponenetial, R.V, Mean and Variance, 3) Let X be a continuous random variable with probability density function

  Bottle of potassium chloride

The RN needs to administer 40 meq of Potassium chloride. The pharmacy has sent a 60mL bottle of Potassium chloride to the floor that contains 20 meq/5mL. How many mLs need to be given?

  Per capita cost per police officer

Calculate the per capita cost per police officer. Explain why increased population can result in increased per capita taxes, even though the per-capita cost per police officer declines with population.

  Find the pattern inventory for the corner colorings

Find the pattern inventory for the corner 3-colorings of a floating pentagon with adjacent corners different colors.

  Counting-probability-combinations

In a local election, there are eight candidates for five positions as judges on the Supreme Bench. The number of possible outcomes of the election is:

  Information about derivatives and concavity

Find the derivative of f(x)= (3-4x^2)/(x^2-x-6) and then determine intervals of increase/decrease,local max and min values and points of concavity and inflection.

  Vertex and axis of symmetry

Label the Vertex and the Axis of symmetry

  What is the cost each of one blueberry pie

What is the cost each of one blueberry pie and one blackberry pie?

  How does this relate to truth tables

On route I-91 near Springfield, MA, there is sometimes a sign that says "WASH YOUR BOAT" (pause) "AFTER USE" (pause). Explain why you are complying with the sign if you do not own a boat. How does this relate to truth tables?

  Explain the binary expansion

Show that the binary expansion of a positive integer can be obtained from its hexadecimal expansion by translating each hexadecimal digit.

  How many students should we put in each group

If we want the groups to be as large as possible, how many students should we put in each group? Please show your work and breakdown the problem.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd