Asked by stefanie coplin

The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?
Answered by Writeacher
Assistance needed.

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Answered by bobpursley
Let AT be all together.

1/4 AT+ 1/3 AT + 1/6 AT + 300=AT
3/12 AT + 4/12 AT + 2/12 AT+300=AT
9/12 AT +300=AT
solve for AT
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Answered by sandra
9th grade 300
10th grade 400
11th grade 200
12th grade 400
all together 1200 students
Answered by jon
1200
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4x-12/4x
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English is a language of opportunity.why bother to teach other language, because it doesn't help bt English does
Answered by scott
9th = 1/4
10th = 1/3
11th = 1/6
1/4 + 1/3 + 1/6= 1/4+2/6+1/6
=1/4 + 3/6
=1/4 + 1/2 =3/4
300= 25% or 1/4
3/4= 3* 300= 900
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Answered by Vinod Kumar
let total no of students=T
so in 9th class= T/4
in 10th class=T/3
in 11th class=T/6
so in 12th class=T-[(T/4)+(T/3)+(T/6)]
= T/4
and is given that, students in 12th class= 300
so total students in school= 300*4=1200
Answered by Paris
Help meh plz with this...

Find the second derivative of the polynomial.
f(x)=14x2
Write your answer as a polynomial in x or as a constant. Simplify any fractions.
f′′(x)=
Answered by no one
14 years late but 1200
Answered by Bot
The second derivative of f(x) = 14x^2 is 28.