Question

v=3k divided by t for t ...
would i write v * t = t* 3k divided by t ?

Answer 1

do you mean the formula is v=3k/t and you have to solve for t?

Answer 2

yes and yes. i believe i have to get t by itself

Answer 3

ok well if you want t what should you do with the 3k to get it away from t?

Answer 4

multiply ?

Answer 5

multiply it by what?

Answer 6

multiply 3k by t ?

Answer 7

no ok think of it as what can you do to 3k to take it away from t and on to the other side?

Answer 8

subtract t from both sides. so it woould b t-v = 3k - t ?

Answer 9

ok think of it as... have you been taught how to multiply by a reciprocal?

Answer 10

no

Answer 11

ok so your problem is v=3k/t... you want t by itself. the reciprocal of a number, fraction, etc is the opposite of itself... so like take just 3k and put it over one like this 3k/1 the reciprocal of that is 1/3k.. did you get it?

Answer 12

yes

Answer 13

ok so do you understand how to get 3k away from t now?

Answer 14

Rose just making a suggestion. Draw him the procedure on how to eliminate t from one side.

Answer 15

multiply 3k by t ? :/

Answer 16

im confused

Answer 17

ok i'll think i'll do that thanks raffle!

Answer 18

troyanna let me draw it for you ok

Answer 19

\[v=\frac{3k}{t}\]multiply both sides by t
\[t*v = t*\frac{3k}{t}\\t*v = \cancel{t}*\frac{3k}{\cancel{t}\\tv=3k}\]

Answer 20

you with me?

Answer 21

yes i had it similar to that in the question

Answer 22

sorry 2 words got cut out

Answer 23

now divide by v to isolate the t
\[tv=3k
\\\frac{tv}{v}=\frac{3k}{v}\\\frac{t*\cancel{v}}{\cancel{v}}=\frac{3k}{v}\\t=\frac{3k}{v}\]

Answer 24

look at it like this
\[v =\frac{3k}{t}\\\text{switch the t and the v}\\t=\frac{3k}{v}\]

Answer 25

@Rose6 I think you have a mistake

Answer 26

ok what do you think i made a mistake on? i want to know so next time i can get it right

Answer 27

wow lol i see what you mean now

Answer 28

i think we had the same concept i just shortened the way i did it

Answer 29

did this help you any? Troyanna

Answer 30

but you got as the answer \[t=\frac{v}{3k}\]

Answer 31

it should be \[t=\frac{3k}{v}\]

Answer 32

yes. & thank you for the picture

Answer 33

yes because when you have the problem it was asking to isolate t... well the only way to isolate t is to get rid of 3k by multiplying by its reciprocal on both. then you are done... and no problem Troyanna just glad to help

Answer 34

*sorry i meant both sides

Answer 35

you have a mistake, because the answer is wrong
\[v=\frac{3k}{t}\rightarrow t=\frac{3k}{v}\\v=\frac{3k}{t}\cancel{\rightarrow}t=\frac{v}{3k}\]

Answer 36

i don't get it.... i isolated t by multiplying the reciprocal what is the matter with the end result.... is it because v is at the top and 3k is the denominator?

Answer 37

the directions were to isolate t from the formula

Answer 38

\[\frac{1}{3k}v=\frac{1}{3k}*\frac{3k}{t}=\frac{1}{t}\]

Answer 39

understand?

Answer 40

no i meant to multiply 3k by its reciprocal like this

v=3k/t

1/3k*v=3k/t*1/3k

3k cancels on the right side and you are left with v/3k=t

Answer 41

lol, I cant do this all day, but its not the right answer.

Answer 42

http://www.wolframalpha.com/input/?i=v+%3D+3k%2Ft%2C+solve+for+t

Answer 43

v would be at the top because were you to put it over one it would be v/1.... ok thanks for trying to help me though.... i guess i was just taught a bit differently

Answer 44

its not about being taught differently, you are not getting the right answer. so if this is the case, you were taught wrong. So you should figure out where the mistake it in your work, because you are getting the wrong answer

Answer 45

i looked at the website i'm not sure what to tell you i see where you got your answer... ok

Answer 46

im not trying to harp on you, i just want you to understand

Answer 47

no its ok i understand... i would want for some one to tell me if i have the wrong answer however i am the type of person that would always check 500 times on my math so if that is the case then i will look into it Thanks!

Answer 48

\[v=\frac{3k}{t}\]multiply both sies by \[\frac{t}{v}\\then\\\frac{t}{v}*v = \frac{t}{v}*\frac{3k}{t}\\\frac{t}{\cancel{v}}\cancel{v}=\frac{\cancel{t}}{v}*\frac{3k}{\cancel{t}}\\t = \frac{3k}{v}\]

Answer 49

ok thanks!