Question

S varies directly as T.

If S is 20 when T is 4, then T is ? when S is 30.

Answer 1

S = k T

Answer 2

k t?

Answer 3

If
S = 20
T = 4

then k = 5

Answer 4

So if:
S= 30
k = 5

whats T ?

Answer 5

\[30 = 5 T\]

Answer 6

T = 6

Answer 7

nooo?

Answer 8

if S is 20 when T is 4

Answer 9

k must be 5

Answer 10

thats a 16 difference

Answer 11

so if S is 30 T is 14

Answer 12

?

Answer 13

To "vary directly" does not involve subtract or addition.

It means there is a constant that separates the variables equality.

Answer 14

I should say:
"There is a constant factor that distinguishes the two variables equality."

Answer 15

so when S is 30 whats T?

Answer 16

T is 6
I already said this