Question

solve using the multiplication principle
-1/8x=-9/10

Answer 1

Ok to solve for x you need to separate the x from the -1/8. you can do that two ways. You can either divide both sides by -1/8, or you can multiply by the inverse fraction (-8/1) to both sides.

Answer 2

*x, *-9/10

x = 10/72

Answer 3

*-10/9, I mean.

Answer 4

That is not what I get, you should be able to multiply both sides by (-8/1) = -8, which gives you x=72/10 = 36/5 = 7 1/5

Answer 5

so the correct answ is -10/9

Answer 6

right thts wht i cam up with 10/72

Answer 7

72/10

Answer 8

I am not sure what Msc. did

Answer 9

me either

Answer 10

I just divied 72/10 which gave me 7.2

Answer 11

-1/8x = -9/10 => 1/8x=9/10
Multiply by 10:
10/8x=9
Multiply by x:
9x=10/8
Divide by 9:
x=10/72

Answer 12

is tht the answer

Answer 13

That is the correct answer, yes.

Answer 14

I just ran it through my calc, it comes up with 7.2 also.
I think you made a mistake in the second step, you can't multiple to move the x from one side to the other, you would have had to divide.

Answer 15

oh ok

Answer 16

so x=?

Answer 17

It says 1/8x, not x/8 or (1/8)x. What I wrote is correct.

Answer 18

10/72
is tht correct

Answer 19

Yes.

Answer 20

Technically, you should always provide the simplest solution, so a better answer would be 5/36.

Answer 21

x = -9/10 x -8 = 72/10 = 7.2

Answer 22

is this simplified it got to be simplify or fractions

Answer 23

That is not correct.

It clearly says (-1)/8x=(-9)/10. You have to invert the equation, or multiply by x in order to isolate for x.

Unless the OP's equation is incorrect.

x=5/36 is the correct answer.

Answer 24

ok thank you so much for being patient with me

Answer 25

No problem.

Answer 26

thank all of u

Answer 27

oh ok - i took the LHS to be (-1/8) * x

my mistake

Answer 28

That's what I figured ;)