2. Juanita has 1720 coins, quarters, dimes and nickels. If the total value of all the coins is $177.15,and the number of nickels is 30 more than the sum of the quarters and dimes, then find the numberof each type of coin. Once you set up the system, you may use your calculator and the matrix featuresto solve the system.

Juanita has 1720 coins, quarters, dimes, and nickels. The total value of all coins is $177.15, and…

Answered: 2. Juanita has 1720 coins, quarters,…

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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Similar questions

On Monday, Sarah picked up lunches for her friends and spent $17.30 on 3 tofu banh mi and 2 bubble teas. On Friday she spent $26.75 on 5 tofu banh mi and 3 bubble teas. Set up a system of two linear equations to represent this situation, then write down the associated augmented matrix for this system. Do not solve this system.
Two teachers, Mrs. Dewsbury and Mrs. Pettit, decide to buy calculators and stickers for their classrooms. Mrs. Dewsbury buys 30 calculators and 50 pages of stickers for $95. Mrs. Pettit buys 40 calculators and 40 pages of stickers of each for $116. Write a system of equations to represent the cost of one calculator, c, and one page of stickers, p. A. c + p = 120 70c + 90p = 211 B. c + p = 211 30c + 50p = 40c + 40p C. 30c + 50p = 95 40cp = 116 D. 30c + 50p = 95 40c + 40p = 116
A small software corporation borrowed $315,000 to expand its software line. The corporation borrowed some of the money at 3%, some at 4%, and some at 5%. Use a system of equations to determine how much was borrowed at each rate when the annual interest was $13,500 and the amount borrowed at 4% was 22/12/2012 times the amount borrowed at 3%. Solve the system using matrices. amount borrowed at 3% $ amount borrowed at 4% $ amount borrowed at 5% $
2 A carnival sold tickets for $1.50 for adults and $1.00 for students. There were 54 tickets sold for a total of $70.50. Write a system of equations to represent the number of adult tickets, x, and the number of student tickets, y. Find the solution and explain what it means.
An apartment complex has 1-bedroom apartments and 2-bedroom apartments. There are a total of 78 apartments in the complex, and there are twice as many 2-bedroom apartments as 1-bedroom apartments. If you want to find the number of apartments of each type, which system of equations could be used to solve the problem? Let x be the number of 1-bedroom apartments, and let y be the number of 2-bedroom apartments. A. x + y = 78 2 + y = x B. x + y = 78 2x = y C. x + y = 78 2y = x D. x + 2y = 78 2y = x E. x + 2y = 78 2x = y
Is 0,5 a system of equations
solve each problem by setting up and solving a system of two equations and two unknowns or a system of three equations and three unknowns. At a local confectionery, 7 pounds of cashews and 5 pounds of Spanish peanuts cost $88, and 3 pounds of cashews and 2 pounds of Spanish peanuts cost $37. Find the price per pound for cashews and for Spanish peanuts.
A “piggy” bank contains nickels, dimes and quarters totaling $6.20 in value. The bank contains 53 coins, and there are two more nickels than dimes. How many coins of each variety are there in the bank? Set up and solve a system of equations for this problem. Show all your work, and clearly indicate your answer!

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