Given:
y is proportional to x.
y=10 and x=8.
To find:
The constant of proportionality and the equation for the proportional relationship.
Solution:
y is proportional to x.

...(i)
Where, k is the constant of proportionality.
Putting y=10 and x=8, we get



Putting
in (i), we get

Therefore, the contestant of proportionality is
and the equation for the proportional relationship is
.
Answer:
the second green shape because the first one is a rectangle which has 2 equal sides
6 + 3 or you could do 4.5 + 4.5. but the first one is probably what they're looking for.
Answer:
value of n = 2
Step-by-step explanation:

We need to solve the above equation.
Find Least Common multiplier from 5n, 5 = 5n
Multiply both sides of the equation by 5n

Now finding the value of n.
Adding -4 on both sides

Multiplying both sides by -1
n = 2
The value of n is 2.
We can verify by putting value of n in the given question.

So, value of n = 2
Answer:
144
Step-by-step explanation:
V=PIr^2h
PI=3
V=3r^2h
r=2 h=12
V=3(2^2)12
V=3(4)12
V=12(12)
V=144in^3