Question

The U.S. Maritime Administration estimated that the cost per ton of building an oil tanker could be represented by the model f(x)=102,000/x+235 where y is the cost in dollars per ton and x is the tons (in thousands). What size of oil tanker (in thousands of tons) can be built for $350 per ton?
a. 56 thousand tons
b. 6 thousand tons
c. 174 thousand tons
d. 526 thousand tons

Answer 1

\[\frac{102000}{350+235}\]

Answer 2

c. 174 thousand tons

Answer 3

saifoo.khan is my hero :)

Answer 4

hehe, thank you. :)

Answer 5

do you know these?....If y varies inversely as x, find the inverse variation for the situation... y=65 when x=9 AND WHEN y=5 x=4

Answer 6

Yes, i know all these.

Answer 7

y=65 x=9 not sure if it's y=585/x or 1/585x?... x/585? i don't know how to write it...

Answer 8

i can figure them out, it's not knowing the format it should go in?

Answer 9

\[y = \frac k x\]
\[65 = \frac k9 \]
\[k = 65 \times 9 \]
\[k = 585\]

Answer 10

So,

\[y = \frac{585}{x}\]

Answer 11

okay so the y=5 x= 4 would be y= 20/x ?

Answer 12

No, it actually depends on the formula they have given/

Answer 13

Crap.. ok..

Answer 14

lol.

Answer 15

what have they given?

Answer 16

It says if y varies inversely as x, find the inverse variation equation for the situation. y=5 x=4
a. y=5/4x
b. y=20/x
c. y=1/20x
d. y= x/20

Answer 17

y = k/x

20 = k

y = k/x

Answer 18

So, B.

Answer 19

thanks again, for real. :)

Answer 20

You welcome..

Answer 21

Can i ask are you doing online college or something?

Answer 22

Yeah ... and teaching myself math isn't that awesome.

Answer 23

Online college is easy.
i know the math part. LOL.

Answer 24

any other class i have noooo problem. but math, it's BAD lol :) you're very lucky it's easy for you!

Answer 25

lol, that's the case with mostly all of the Online school students.

Answer 26

for me, it's literally like teaching myself again.. aaand i'm not a good teacher. and i have a 1 and 2 year old that don't help ;)

Answer 27

LOL.
well if you want any help, you can contact me as well if you want.. =]

Answer 28

thanks so much!!.. i mean that so sincerely! have a good day :D

Answer 29

uw.
same 2 u. :]