math
posted by Quita .
in order to purchase a computer for the student activities office, the freshman class decides to raise 1/3 of the money and the sophomore class decides to raise 1/2 of the money. The student government association agrees to contribute to the rest which amounted to $400.what was the cost of the computer?

(1/3)x + (1/2)x + 400 = x
(2/6)x + (3/6)x + 400 = x
(5/6)x x = 400
(1/6)x = 400
x = 400/(1/6)
x = 400 * 6
x = 2400 
Would this be a geometric sequence?

Can you write it in a sentence

Yes.
What sentence should YOU write? 
How did you turn 5/6 to 1/6

I don't understand how you turned 5/6 to 1/6
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