5. Colleen has 12 coins in her pocket. The mix of quarters, nickels, and dimes add up to two dollars, and she has three times as many quarters as nickels. a. Write a system of three linear equations in three variables to represent this problem situation. Be sure to define your variables. b. How many of each coin does Colleen have in her pocket? Solve this system using Gaussian elimination.

5. Colleen has 12 coins in her pocket. The mix of quarters, nickels, and dimes add up to two dollars, and she has three times as many quarters as nickels. a. Write a system of three linear equations in three variables to represent this problem situation. Be sure to define your variables. b. How many of each coin does Colleen have in her pocket? Solve this system using Gaussian elimination.

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Question

5. Colleen has 12 coins in her pocket. The mix of quarters, nickels,
and dimes add up to two dollars, and she has three times as
many quarters as nickels.
a. Write a system of three linear equations in three variables
to represent this problem situation. Be sure to define your
variables.
b. How many of each coin does Colleen have in her pocket?
Solve this system using Gaussian elimination.

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