:)

- anonymous

:)

- chestercat

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- anonymous

@Hero do you know how to do this? :)

- anonymous

ooh, I did too :/ next time I will :D

- anonymous

okay, thanks! :) I'm tired too, I've been working on it like all day..ha, byee :D

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- anonymous

okay, will do :D thank youu (:

- anonymous

@Hero heey (:

- anonymous

soo can you help me? :) hehe

- phi

You have an equation
using the equation t=k/p
Your first step is figure out what k is,
to do that, replace t and p with a pair of numbers that "go together"
They give you one pair of numbers, the first line in your table.
Can you find k?

- anonymous

yeah, but what would be the pairs for the others? like how do I figure it out? :/

- phi

what is k ?

- anonymous

ooh, I don't know :/

- phi

the first line says
depth pressure time
0ft 1atm 60min
they give you a p (1 atm) and time (60 min)
use this info in
t=k/p
to find k

- anonymous

so 60=k/1 ..i would times both sides by 1?

- phi

you could, but anything divided by 1 is itself, so just rewrite k/1 as k
you get
k= 60

- anonymous

ooh okay

- phi

so make a note, your equation is
t= 60/p

- phi

now to use this equation, you need to find the pressure at each depth in the table.
Activity 1 gives an equation for how to find the pressure at a depth.
Can you use it to fill in the pressure column ?

- anonymous

the d=33+1 equation? :S

- anonymous

i mean d/

- phi

yes, but get the details right. What is the equation for finding P ?

- anonymous

p=d/33+1? i don't know :(

- phi

yes, that is it.

- phi

They say
The pressure P (atm) varies with depthd( ft) according to the equation
P= d/33 + 1
You have to be able to read complicated sentences. It's not math, but reading.
but to continue, for each depth in your table, you use this equation to find the pressure at that depth.
for example, for d=0 ft (depth is zero feet) , replace d with 0 in the equation
P= 0/33 + 1 = 1
P is 1 at depth= 0 feet
can you fill in the rest of your depths with the pressure at that depth ?

- anonymous

yes! what about the time?

- phi

one step at a time. Once you have the pressures filled in, you go back to the equation we figured out already, t = 60/p to find the time (in minutes)

- anonymous

you are brilliant! thank you so much phi...once again!!!! :D

- phi

If you want, you can post your results so we can check them.

- anonymous

okay, will do :D!

- anonymous

p=33/33+1=2
t=60/2=30
hopefully I got this right? if I got that right then I'm sure the rest are :D

- phi

looks good.
btw, you will get fractions (or decimals) for depth=20,

- anonymous

:D thank youu

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