Applications of Linear Equations : Word Problem
Not what you're looking for?
A professor started a project with a group of students, 60% of whom were boys. Due to some unavoidable reason, six girls couldn't turn up, so the professor had to make some changes in the group. He admitted six boys. In doing so, the percentage of boys in the project increased to 75%. Find the number of boys and girls involved in the project initially.
I don't know what formula or eqaution I should use.
I was thinking maybe x=boys and y=girls thus
x(.60)+ y(.40)=total students and
(.60x+6)+(.40y-6)= number of students
I'm not sure if I set this up correctly.
Purchase this Solution
Solution Summary
An application problem of percentages is solved. The solution is well explained.
Solution Preview
No.
Suppose there are initially x students in the group. 0.6x are boys and 0.4x are girls. Now due to some reason, 6 girls couldn't come. The problem says the professor admitted six boys. ...
Purchase this Solution
Free BrainMass Quizzes
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Probability Quiz
Some questions on probability
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.