Question

Under water, pressure increases 4.3 pounds per square inch (psi) for every 10 feet you descend. This is represented by the equation p = 0.43d + 14.7, where p is the psi and d is the depth in ft. Find the pressure at 200 feet.

Answer 1

grr i gotta do my own homework not yours.... i will teach you if you would like...

Answer 2

Ok. Then teach me if you want :)

Answer 3

i can only teach you if you want

Answer 4

I want :)

Answer 5

ok =)

Answer 6

in this equation d represents feet

Answer 7

I really don't know... :/

Answer 8

wait im soryy
d equals depth every ten feet... so if d=20 what does p =?

Answer 9

well lets plug it in

Answer 10

Ok =)

Answer 11

p = .43(d) + 14.7
put in d
d= 20
p = .43(20) +14.7

Answer 12

what is 20 times .43 ???

Answer 13

8.6

Answer 14

great! so:

p = 8.6 + 14.7

Answer 15

what is 8.6 + 14.7 ?

Answer 16

23.3 :)

Answer 17

you did it!

Answer 18

ding ding ding

Answer 19

Haha. So Is that the answer then??

Answer 20

dont forget your units tho...

23.3 psi

Answer 21

yep

Answer 22

But that's not even one of the choices on my homework... :/

Answer 23

see its not that hard =P

Answer 24

what are the choices?

Answer 25

215.13 psi
860 psi
100.7 psi

Answer 26

ohh lol we used the wrong d.. instead of 20 we should have used 200

Answer 27

if we used 200 we would have gotten 100.7

Answer 28

same idea tho i promise

Answer 29

Lol. Ok. Thank you for helping me with this(: I appreciate it. :)

Answer 30

no problem =)