Question

Help Meh Real Quick Plzzz (my brain is dead)
Its Maths and just need the answer!
Thanks!

Answer 1

m = 27 is the answer

Answer 2

`m=27`

Explanation:

When something is directly proportional, it means that:
`a=kb`, where
`k` is some constant (number).

We are given that
`m` is directly proportional to
`n^2`, and
`m=75` when
`n=5`.

So, we have...

`a=kb`

`m=kn^2`

`75=k(5)^2`

`75=25k`

`k=3`

So the full equation is:

`m=3n^2`

Now, to find the answer when
`n=3`, simply put 3 into the equation.

Which gives:

`m=3(3)^2`
`m=9(3)`
`m=27`

Final answer: m=27.