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There are 40 students in the school band.There are three times as many girls as boys in the band.How many boys are in the band what let statement would be correct

Respuesta :

grujan50

Answer:

Correct answer:  boys = 10 and girls = 30

Step-by-step explanation:

Let boys be x and girls be y

x + y = 40  and y = 3 · x =>  x + 3 x = 40 => 4 x = 40 => x = 40 / 4 = 10

x = boys = 10  => y = 3 · 10 = 30

y = girls = 30

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