The enrollment at High School R has been increasing by 20 students per year. High School R currently

Discussion in 'Calculator Requests' started by math_celebrity, Nov 11, 2020.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    The enrollment at High School R has been increasing by 20 students per year. High School R currently has 200 students. High School T has 400 students and is decreasing 30 students per year. When will the two school have the same enrollment of students?

    Set up the Enrollment function E(y) where y is the number of years.

    High School R:
    Increasing means we add
    E(y) = 200 + 20y

    High School T:
    Decreasing means we subtract
    E(y) = 400 - 30y

    When the two schools have the same enrollment, we set the E(y) functions equal to each other
    200 + 20y = 400 - 30y

    To solve this equation for y, we type it in our search engine and we get:
    y = 4
     

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