A population has the following characteristics.(a) A total of 75% of the population survives the first year. Of that 75%, 25% survives the second year. The maximum life span is 3 years.(b) The average number of offspring for each member of the population is 3 the first year, 6 the second year, and 3 the third year.The population now consists of 176 members in each of the three age classes. How many members will there be in each age class in 1 year?0 ≤ age ≤ 11 ≤ age ≤ 22 ≤ age ≤ 3In 2 years?0 ≤ age ≤ 11's age ≤ 22 ≤ age ≤ 3Need Help?Read It

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Answered: A population has the following…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A population has the following characteristics. (a) A total of 25% of the population survives the first year. Of that 25%, 75% survives the second year. The maximum life span is 3 years. (b) The average number of offspring for each member of the population is 3 the first year, 5 the second year, and 3 the third year. The population now consists of 128 members in each of the three age classes. How many members will there be in each age class in 1 year? 0 ≤ age ≤ 1 1 ≤ age ≤ 2 2 ≤ age ≤ 3 In 2 years? 0 ≤ age ≤ 1 1 ≤ age ≤ 2 2 ≤ age ≤ 3
The table shows the leading causes of death in a certain country in a recent year. The population of the country was 311311 million. If you lived in a typical city of 500,000, how many people would you expect to die of cancercancer each year? Cause Deaths Cause Deaths Heart disease 596 comma 700596,700 Alzheimer's disease 84 comma 90084,900 Cancer 575 comma 300575,300 Diabetes 73 comma 40073,400 Chronic respiratory diseases 143 comma 100143,100 Pneumonia/Influenza 53 comma 40053,400 Stroke 128 comma 600128,600 Kidney disease 45 comma 30045,300 Accidents 122 comma 500122,500 Suicide 38 comma 60038,600 About people would be expected to die of cancer each year. (Type a whole number. Round to the nearest person as needed.)
An electronics company produces transistors, resistors, and computer chips. Each transistor requires 3 units of copper, 1 unit of zinc, and 2 units of glass. Each resistor requires 3, 2, and 1 units of the three materials, and each computer chip requires 2, 1, and 2 units of these materials, respectively. How many of each product can be made with the following amounts of materials? Complete parts (a) through (c) below. (a) Let x represent the number of transistors that can be made, y the number of resistors, and z the number of computer chips. Write a system of three linear equations when the amounts of available materials are 775 units of copper, 385 units of zinc, and 470 units of glass. Choose the correct answer below. A. 3x + 3y + 2z = 385 x+2y+z=775 2x+y + 2z = 470 O C. 3x + 3y + 2z = 775 x + 2y + z = 385 2x+y + 2z = 470 The company can make 6 transistors, 2 resistors, and 3 computer chips. (b) 770 units of copper, 380 units of zinc, and 490 units of glass The company can make…
A custom guitar shop sells two types of guitars: electric and acoustic. The creation process of each guitar is broken into three parts: building the base guitar, applying the finish/paint, and adding accessories. The time requirements (in days) and the total days available for each phase of the creation process are shown in the below. Electric Acoustic Base quitar Applying the creation finish/paint 2 There are 6 4 492 2 186 Adding accessories 2 5 Total days If they profit $600 from each electric guitar and $500 from each acoustic guitar, how many of each guitar type should be made to maximize the shop's profit? What is the shop's maximum profe dollars)? 340 The maximum profit is s when electric guitars and Determine if the shop has any leftover time (in days) for each task, entering 0 if no time is leftover days leftover for building base guitars, acoustic guitars are made. days leftover for applying finish/paint, and days leftover for adding accessories,
wawb grutsgrad Beorge cit OXOL VW 5 batay ow! doily Howing GL CELLAM? Csberic y = vol od or assovo odl 1 + 11) Foxes were introduced to an area that did not naturally contain them. Based on other similar areas, the carrying capacity for this area is 130 foxes. The number of foxes was said to reach 65 (half the carrying capacity) in 38 years (which is C). Using this information and a value of B = -2.3, estimate the number of foxes in 54 years. Round to the nearest whole number. labour ho avus iedW A (1) do bas avode diger sit (0) В
A population starts with 16 carpet beetles and in a week the population increase by 1 new beetle for every 4 beetles that were there the previous week which can be shown in the following table: Week 0 Week 1 Week 2 Week 3 = 31 Week 5 = 49 Week 4 16 20 25 = 39 How many beetles do you estimate there will be by Week 8?

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