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21 December, 11:18

A high school graduating class is made up of 535 students there are 149 more girls than boys how many boys are in the class

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  1. 21 December, 13:49
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    Let's set up a couple of equations:

    Let x = number of girls

    Let y = number of boys

    Graduation class = x + y

    There are 535 total students, so:

    535 = x + y

    Since there are 149 more girls than boys:

    x = y + 149

    Then let us plug this equation into the equation with the total graduation class:

    535 = (y + 149) + y

    Then add like terms:

    535 = 2y + 149

    Subtract 149 to get y on one side:

    386 = 2y

    Divide by 2 to get the number of boys that are in the class:

    y = 193

    So now we know that there are 193 boys in the class.
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