Question

@vocaloid

Answer 1

Which of the following equations is the result of cross multiplying the given proportion?

Answer 2

\[\frac{ 3 }{ k+3 }=\frac{ 8 }{ k-2 }\]

Answer 3

do you understand how to cross-multiply?

Answer 4

yea

Answer 5

let's give it a shot then

Answer 6

3(k-2) = 8(k+3)

Answer 7

3(k-2) and 8(k+3)

Answer 8

oh you said it already :#

Answer 9

heh, it's cool

Answer 10

now we can just distribute

Answer 11

3(k-2) = 3k - 6
and
8(k+3) = 8k + 24

Answer 12

3k - 6 = 8k + 24

then combine like terms

Answer 13

know where to go from here?

Answer 14

No :3

Answer 15

we can subtract 3k from both sides

Answer 16

8k - 3k = ?

Answer 17

5k

Answer 18

good

Answer 19

(sorry my internet just went out for a few minutes)

Answer 20

now we subtract 24 from both sides

Answer 21

giving us

5k = -30

Answer 22

so k = 6

Answer 23

and that should be it

Answer 24

Alright. Thanks