Answered: Use a system of linear equations with…

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter9: Systems Of Linear Equations

Section9.5: Multiplication With The Addition-or-subtraction Method

Problem 5ST

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Use a system of linear equations with two variables and two equations to solve.

195 students enrolled in a freshman-level chemistry class. By the end of the semester, 4 times the number of students passed as failed. Find the number of students who passed, and the number of students who failed.

Passing Students:

Failing Students:

Expert Solution

Step 1

Given data is :

195 students enrolled in a freshman-level chemistry class.

Let the number of student failed is $x$ and number of student passed is $y$

From question,

$\begin{array}{rcl} y & = & 4 x \end{array}$

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