Algebra

At Central High School, the sophomore class has 60 more students than the freshman class. The junior class has 50 fewer than twice the number of students in the freshman class. The senior class is three times as large as the freshman class. If there are a total of 1,424 students at Central High School, how many students are in the freshman class?

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  1. If the classes are a,b,c,d, then
    b = a+60
    c = 2a-50
    d = 3a

    a+b+c+d = 1424
    a+(a+60)+(2a-50)+(3a) = 1424
    7a + 10 = 1424
    7a = 1414
    a = 202

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    posted by Steve

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