Respuesta :
Answer:
168
Step-by-step explanation:
This is a proportion problem, but with a small trick.
Boys/Girls = 7/6
Here is the trick: add 1 to each side of the equation
(boys/girls) + 1 = (7/6) + 1
(boys + girls)/girls = 13/6
364/girls = 13/6 => 13*(girls) = 6*364 = 2184 => girls = 168
Answer:
[tex]168[/tex] girls
Step-by-step explanation:
Since the ratio of girls to boys is [tex]6:7[/tex], we can let the number of girls be [tex]6x[/tex] and the number of boys be [tex]7x[/tex]. We are given that there are a total of [tex]364[/tex] students, so we can write the following equation to solve for [tex]x[/tex]:
[tex]6x+7x=364[/tex]
Solving for [tex]x[/tex], we get:
[tex]6x+7x=364[/tex]
[tex]13x=364[/tex] (Simplify LHS)
[tex]\frac{13x}{13} =\frac{364}{13}[/tex] (Divide both sides of the equation by [tex]13[/tex] to get rid of [tex]x[/tex]'s coefficient)
[tex]x=28[/tex] (Simplify)
Therefore, there are [tex]6x=6*28=168[/tex] girls in the 6th Grade. Hope this helps!