Question

Algebra Question

Answer 1

?

Answer 2

If \[\frac{ 3 }{ 4 } = \frac{ 6}{ x } = \frac{ 9 }{ y } \] , then x +y = ?

Answer 3

you can solve for x, and solve for y, by making the following conclusions out of your initial statement (what you wrote above).

(Hope you know why they are valid)

\(\large\color{black}{ \displaystyle \frac{3}{4}=\frac{6}{x} }\) and \(\large\color{black}{ \displaystyle \frac{3}{4}=\frac{9}{y} }\)

Answer 4

oh so this also follows the transitive property of equality

Answer 5

yes, if you have `a=b=c`
then you can conclude that: `a=b` `a=c` or `b=c`

Answer 6

this way we can solve for x and solve for y.
(Have you found any of the unknown variables) ?

Answer 7

Yes I have :D
After cross multiplying:
3x= 24 and 3y = 26 and then dividing both equations by 3 on both sides gave me x = 8 and y = 12 and therefore x + y = 12 + 8 = 20
Did I do this right or was there a mistake somewhere?

Answer 8

you mea 3y=27?

Answer 9

x=8 is correct, check your y.

Answer 10

yes

Answer 11

hmm

Answer 12

3y=36

yu meant 36 not 26

Answer 13

so, y=12, x=8

x+y=8+12=20

RIGHT !!

Answer 14

OH haha

Answer 15

I was like hmm where did you get 27 from haha, thanks :)

Answer 16

Yes, I got confused by 26 there (I thought you meant 27, but the keyboard was off by the first digit.... In any case, you are always welcome:)