Question

How do you solve `5k ( 6- 6m)` for `k=2` and `m=1/2`?

Answer 1

So, let's take a look at the equation we have.
`5k(6-6m)` for `k=1` and `m=1/2`

So, let's first space this out a bit.
`5*k*(6-(6*m))`

Now, since they want us to solve it as if `k=1` and `m=1/2`, we should substitute any mention of `k` with `1` and any mention of `m` with `1/2`. Our new, substituted equation is:

`5*1*(6-(6*1/2))`

Now, we start to solve.

`5*1*(6-(6/2))` Multiplied 6 times 1/2 to get 6/2

`5*1*(6-(3))` Simplified 6/2 to 3

`5*1*(3)` Subtracted 3 from 6

`5*3` Multiplied 3 and 1

`15`

Cheers!