Given:
y is directly proportional to x.
when 
To find:
The equation that connects y with x.
Solution:
It is given that, y is directly proportional to x. So,

...(i)
Where, k is the constant of proportionality.
We have,
when
. Substituting these values in (i), we get
Divide both sides by 5.
Substituting
in (i), we get
Therefore, the required equation is
.
Answer:
I'm sorry I didn't understand
Step-by-step explanation:
sorry
There are 12 boys and 21 girls for a total of 33 students


Positive sine, negative tangent, means we have a negative cosine. We're talking about the second quadrant.



We know it's negative,

Answer: -(1/3)√5
X-y=30
y=15
x-15=30
X=30+15
= 45
Hope this helps u !!