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Mathematics 19 Online
OpenStudy (anonymous):

-2/11y = 4/15

OpenStudy (saifoo.khan):

OpenStudy (anonymous):

11/2 * (-2/11)y = 11/2 * 4/15 -y = 44/30 y = -44/30 y = -22/15

OpenStudy (saifoo.khan):

i posted the steps of that ques

OpenStudy (anonymous):

c-4.11=1.2

OpenStudy (anonymous):

thank u khan I got them

OpenStudy (saifoo.khan):

5.31

OpenStudy (saifoo.khan):

uw.

OpenStudy (anonymous):

c = 1.2 +4.11 c = 5.31

OpenStudy (anonymous):

thank u

OpenStudy (anonymous):

3+v =1.7

OpenStudy (anonymous):

v = -1.3

OpenStudy (saifoo.khan):

-1.3

OpenStudy (anonymous):

10 x - 9x - 11=15

OpenStudy (saifoo.khan):

26

OpenStudy (anonymous):

x - 11 = 15 x = 26

OpenStudy (anonymous):

-13+15=p+5

OpenStudy (saifoo.khan):

-3

OpenStudy (anonymous):

2 = p + 5 p = -3

OpenStudy (anonymous):

4(k+2) -3k= -6+9

OpenStudy (saifoo.khan):

-5

OpenStudy (anonymous):

4 k + 8 -3k = 3 k + 8 = 3 k = - 5

OpenStudy (anonymous):

3/10 times ___ = 1?

OpenStudy (anonymous):

3/10 * x = 1 3x/10 = 1 3x = 10 x= 10/3

OpenStudy (anonymous):

Are you learning rosanne?

OpenStudy (anonymous):

yes but its still a tad confusing the fractions mess me up a lil

OpenStudy (anonymous):

so look at this it said -6p=12 use the multiplication or division property of equality?

OpenStudy (anonymous):

what is that?

OpenStudy (saifoo.khan):

cross multiply.

OpenStudy (anonymous):

Don't think about that, just solve. If - 6 times a number is 12. What is that number?

OpenStudy (saifoo.khan):

-p = 12/6 -p = 2 p = -2

OpenStudy (anonymous):

Try to solve this, roseanne, just as an exercise. x - 10 = 5/5 x= ?

OpenStudy (anonymous):

x=11?

OpenStudy (anonymous):

Yes!

OpenStudy (anonymous):

yeah!!!!!!!!! your so sweet thank you

OpenStudy (anonymous):

You're welcome. I hope you go until topology.

OpenStudy (saifoo.khan):

thnks Ana.

OpenStudy (anonymous):

You're welcome.

OpenStudy (anonymous):

top ology??? what is that?

OpenStudy (anonymous):

It's the study of continuity of functions, among many other things. It's beautiful.

OpenStudy (anonymous):

- v/10 =-4??? thats confusing

OpenStudy (saifoo.khan):

v = 40

OpenStudy (anonymous):

wow yes me too

OpenStudy (anonymous):

First. Multiply by (-1). Go on.

OpenStudy (saifoo.khan):

OpenStudy (anonymous):

thank u so when its set up as a fraction I would cross multiply

OpenStudy (saifoo.khan):

Yeah..

OpenStudy (saifoo.khan):

:)

OpenStudy (anonymous):

ok..

OpenStudy (saifoo.khan):

\[\color{purple}{\text{Thnks for the MEDAL though.}}\]

OpenStudy (anonymous):

ure welcome 5/9=40?

OpenStudy (anonymous):

No. 40 is way greater.

OpenStudy (saifoo.khan):

OpenStudy (anonymous):

40 is way greater what do u mean?

OpenStudy (anonymous):

40 is greater than 5/9.

OpenStudy (anonymous):

so what would be the answer?

OpenStudy (anonymous):

It's a false statement.

OpenStudy (saifoo.khan):

there wont b any answer/

OpenStudy (saifoo.khan):

yeah, shez correct.. if they ask u to prove that.

OpenStudy (anonymous):

no i'm sorry! 5/9n=40

OpenStudy (saifoo.khan):

Oh!

OpenStudy (anonymous):

5/9 n = 40 Multiply both sides by 9/5.

OpenStudy (anonymous):

Give her a chance to do it saifo.

OpenStudy (saifoo.khan):

okay, u do it... ^.^

OpenStudy (anonymous):

72?

OpenStudy (saifoo.khan):

Correct. Good work (unless u saw my solution) jk.

OpenStudy (anonymous):

Got it.

OpenStudy (anonymous):

lol ok hey is the first number always going to cancel out?

OpenStudy (saifoo.khan):

not imp, but in easy questions it does.

OpenStudy (anonymous):

You multiply by the reciprocal of the fraction you have so it will cancell

OpenStudy (saifoo.khan):

but i think, multiplying by crossing is easy... ^.^

OpenStudy (anonymous):

so a/4=-12 a=-3?

OpenStudy (anonymous):

No. -3/4 = - 0.75. Try again. Which number divided by 4 gives 12?

OpenStudy (anonymous):

3

OpenStudy (anonymous):

Not multiplied, divided.

OpenStudy (anonymous):

48

OpenStudy (anonymous):

Alright, and then what number divided by 4 gives negative twelve?

OpenStudy (saifoo.khan):

check your signs again!

OpenStudy (anonymous):

-48?

OpenStudy (anonymous):

Alright! =DD

OpenStudy (anonymous):

- v/10=-4

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