Question

:)

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

okay, will do :D thank youu (:

Answer 5

@Hero heey (:

Answer 6

soo can you help me? :) hehe

Answer 7

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?

Answer 8

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

Answer 9

what is k ?

Answer 10

ooh, I don't know :/

Answer 11

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

Answer 12

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

Answer 13

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

Answer 14

ooh okay

Answer 15

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

Answer 16

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 ?

Answer 17

the d=33+1 equation? :S

Answer 18

i mean d/

Answer 19

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

Answer 20

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

Answer 21

yes, that is it.

Answer 22

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 ?

Answer 23

yes! what about the time?

Answer 24

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)

Answer 25

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

Answer 26

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

Answer 27

okay, will do :D!

Answer 28

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

Answer 29

looks good.

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

Answer 30

:D thank youu