The following data represent the development of a certain population P in time t: [Please refer to the attachment for the table] a) Determine the best way to model the data, for example by a logistic model. b) Determine appropriate parameters for the model type choosen. c) Calculate the relative error of your model. d) Us
I am at a total loss as how to convert fractions into percents and vice versa. I need a detailed explanation as it would be taught to the original grade level. Here is an example. What is the % of 2/5 (i think 40 or .40???) I don't know how to get to that though. and how do you convert 40% then into a fraction? HELP!
Assistance with word problems needed. Please show steps to problems. Please see attachment. Thank you in advance
Assistance with word problems needed. Please show steps to problems. Please see the attachment for proper formatting. Thank you in advance 120. Toxic pollutants. The annual cost in dollars for removing p% of the toxic chemicals from a town's water supply is given by the formula C(p) = 500,000 _______
Choose an example of ratios and proportions from the textbook or real life and present a step-by-step solution. Choose an example of a rational expression (uniform motion problem, work problems, purchasing problems or formulas) from the textbook or real life and present a step-by-step solution. Explain how solving a prop
Please post all the steps for the problems below and number them accordingly so that I can follow along and understand the process. Thank you! 1. Rise and run. If the rise is 3/2 and the run is 5, then what is the ratio of the rise to the run ? 2. Fast food. If four out of the five doctors prefer fast food, then at a
1. A lawyer bills her clients $300 per hour of service. If a client's case requires 17 hours to complete, use a proportion to calculate how much the client will owe the lawyer (excluding tax). 2. A new virus is released on the internet; the administrator of a department's Local Area Network (LAN) is given five minutes by a
HardWood, Inc., produces and sells the finest quality pool tables in all of Madison County, Iowa. The company expects the following sales and expense in 2009 for its tables: Sales (1,000 tables @ $500 per table) $ 500,000 Variable expenses 200,000 Fixed expenses 60,000 A. What is the contribution margin
1. Rise and run. If the rise is 3/2 and the run is 5, then what is the ratio of the rise to the run? 2. New product. A taste test with 200 randomly selected people found that only three of them said that they would buy a box of new Sweet Wheats cereal. How many boxes could the manufacturer expect to sell in a country of
Tracy decided to choose an insurance plan, the monthly cost of which is $18 and the deductible is $500. The insurance pays 85% of all expenses after the deductible. The total expenses Tracy spends during the year is $718.76. Tracy's total medical cost of the year with this plan is $_______
Solve The Following Problems 1. Given that 1 acre equals 43,560 square feet, a rectangular area 1230 feel long by 675 feet wide is how many acres? 2. You plan to treat both sides of a roadway with 35 gallons of herbicide mix per acre. The treatment area is 2.6 miles long and the road shoulders are 35 feet wide. How much
1. The sum of (3/ x + 2/y) 2. Express as a single fraction in simplest form (x+2)/ 4 - (x-3)/ 3 3. Express as a single fraction in lowest term: {(y^2-16) / (2y+6)}{(y+3)/(y-4)} 4. Perform the indicated operations and express the result in simplest terms: {(x+ 3) (x^2-x-6)} / {(2x+4) (2x+6)} {(x^2 + 5
I know that working with models helps students conceptually understand mathematics they might otherwise simply memorize and apply. I need help to develop a lesson plan in which students are taught to manipulate and work with two models that show fraction equivalency: one area/region model and one length/set model. 1. Have
Questions 1. Define the following:  Asset  Current asset  Liability  Current liability  Contributed capital  Retained earnings 2. Define a business transaction in the broad sense, and give an example of observable external, observable internal, and unobservable eve
What is the role of simulation in statistical problem solving? Can you provide two examples of simulation in SPS? What are the limitations of stimulation in SPS?
**Please see the attached file for the fully formatted problems** Write each of the following ratios in simplest form. And explain your answer. The ratio of 7 oz to 3 lb
An administrator of a popular website is told that a new faster server, which will replace the old server, can handle 45,000 hits (users accessing the site) per second. The website currently experiences a peak demand of about 110,000 hits per second. But, every month, the peak demand increases by 2500 hits per second. Use a prop
An economy's consumer price index is described by the function I(t) = -0.2t^3 + 3r^2 + 100 where t=0 corresponds to 1995. (0 <= t <= 10) At what rate was the CIP changing in 2000? In 2001? In 2002?
The demand for a certain commodity is given by D(x) = -50x + 800; that is, x units of the commodity will be demanded by consumers when the price is p = D(x) dollars per unit. Total consumer expenditure E(x) is the amount of money consumers pay to buy x units of the commodity. a) Express consumer expenditure as a function
Consumers' Surplus p = D(q) is the price (dollars per unit) at which q units of a particular commodity will be demanded by the market (that is, all q units will be sold at this price), and q0 is a specified level of production. Find the price p0 = D(q0) at which q0 units will be demanded and compute the corresponding consume
Two students in your class are having an argument about the American money system. One claims it is an example of the metric system and the other claims it is not. How do you help settle the argument? In 1980 I was a middle-school math teacher. Congress passed the Metric Conversion Act which stated that the US of A would
Problem 1: A time study is performed on an operation, resulting in the data following (in minutes). Cycle Element 1 2 3 4 5 6 7 8 Performance Rating 1. Get and position unit 0.22 0.27 0.19 0.24 0.17 0.24 0.21 0.18 1.10 2. Perform calibration 2.20 2.70 2.50 3.
Q thousand units of the commodity will be demanded at a price of p = D(q) dollars per unit, while q thousand units will be supplied by producers when the price is p = S(q). D (q) = 65 - q^2 S (q) = (1/3)q^2 + 2q + 5q) a) Find the equilibrium price P (where supply equals demand) b) Find the consu
X2-22 - x-2 ____ _____ x2-9x+20 x-5
Please see attachment. #1. Multiply. Write your answer in lowest terms. #2. Multiply and simplify: #3. Divide. Write your answer in lowest terms. #4. Express the following compound fraction in lowest terms: 4 . 28 9 4 3 3 r s 2 7 pq 6 r 3 s
See attached. 2. What is the quotient when is divided by ? 5. Find all (vertical and horizontal) asymptotes of (see the attached file). What is the domain of this function?
Solve problem: 4 * 5x - 5 x^2 - x 12.
Add or subtract. Write the answer in lowest terms. 3/9-y - 4/y-9
Add or subtract. Write the answer in lowest terms. x/x - 5 + 10/x + 5 - 50/x^2 - 25
Solve the following problems showing all your work every step of the way. 1. You have been given information that if a student is a resident and they enroll for more than 12 hours, then their tuition will equal $120 plus $10 per hour for every hour greater than 12. Create an equation that would allow a student to simply plug