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a 9 grade math class has 27 students there are twice as many girls in this class as there are boys.write a system of equation that could be used to model this situation
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a 9 grade math class has 27 students there are twice as many girls in this class as there are boys.write a system of equation that could be used to model this situation

User Alex Karapanos
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The first equation is x + y = 27 For the second equation, there are twice as many girls (y) as boys (x), so you write: y = 2x Now you have a system of equations: x + y = 27 y = 2x
User Daryl Spitzer
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