Question

y varies directly with x. When y = 12, x = 16. Find x when y = 24.

Answer 1

hint:

y varies directly with x means \[y = kx\]
does that help?

Answer 2

no

Answer 3

find k from y=kx by putting y=12,x=16 and tell what u got as k.....

Answer 4

ok.........one sec

Answer 5

12 = k16?

Answer 6

yes,so how do u get k on one side only??

Answer 7

idk

Answer 8

divide by 12?

Answer 9

Y=k*X...k=Y/X \[k=\frac{ 12 }{ 16 }\] now find K and put it in \[Y=k*X\] you've K and you have X..find Y

Answer 10

since u want to isolate k ,
u divide by the number which is with k....
which number is with k?

Answer 11

16

Answer 12

yes,so u divide by 16 on both sides....

Answer 13

1.3........?

Answer 14

no

Answer 15

how did u get 1.3?

Answer 16

try to figure out again

Answer 17

got it!

Answer 18

Thanks

Answer 19

so whats k?

Answer 20

32