Ray's cellphone texting plan has fixed access fee plus a per text fee.One month he has 52 texts and the bill is $43.The next month he has 246 texts and a bill of $91.5.Ray discovers that he can change his plan to unlimited texts for $81.What is the minimum number of texts Ray must have before it makes sense to switch to the unlimited plan?O 149O 324204194

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Answered: What is the minimum number of texts Ray…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Rey is choosing a profession in engineering. He is choosing between civil, chemical and mechanical engineering. He searched about the annual income of each engineering profession and wants to consider this when choosing. An Civil Engineer earns an average of 196,000 per year with a tax rate of 25%, a Chemical Engineer earns an average of 221,000 a year with a tax rate of 25%, and lastly, Mechanical Engineer earns an average of 587,000 a year with a tax rate of 32%, which among this profession should he choose if he will consider the net income?
Malcom runs a store selling custom made computers in only 2 hours. His new assistant, Jamal, is less experienced and requires 3 hours to assemble each computer. Working together, how long will it take Malcolm and Jamal to clear their backlog of 70 orders
A local news channel plans a 36-minute Saturday morning news show. The show will be divided into three segments involving sports, news, and weather. Market research has shown that the sports segment should be twice as long as the weather segment. The total time taken by the sports and weather segments should be twice the time taken by the news segment. On the basis of the market research, it is believed that 50, 70, and 60 (in thousands) viewers will watch the program for each minute the sports, news, and weather segments, respectively, are on the air. Use the simplex method to complete parts (a) and (b). (a) Find the time that should be allotted to each segment in order to get the maximum number of viewers. Find the number of viewers. Set up the linear programming problem. Let x₁, x₂, and x3 be the number of minutes taken by the sports, news, and weather segments, respectively, and let z be the number of viewers in thousands. subject to x₁ + x₂ + x3 -X₁ + 2x3 -X₁+2x2-x3 x₁20, X₂20, x3…
Ramsey is enrolled in 3 classes: Economics, Math, and Geography. He is trying to decide how to allocate his study time. He decides to study a total of 30 hours per week. Math will require twice as much study time as Geography. Also, Geography will require 3 less hours than economics per week. How many hours should Ramsey study Economics each week?
A bicycle shop sells road bikes and town cruisers. It takes 22 hours to assemble a road bike. It takes 11 hour to assemble a town cruiser. A maximum of 6060 hours a week is set aside to complete the assembly for both types of bike. After assembly, for safety reasons the assembly needs to be checked and tested. it takes 1212 hour to check and test the road bikes, and 1414 hour to check and test the town cruisers. A maximum of 2020 hours per week is set aside to complete these tasks for both types of bike. What is a system of inequalities that models this scenario? Select all that apply.
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