Question

Someone PLEASE help with the two I haven’t done yet. I don’t understand it.

Answer 1

13.)
`k = (mv)/(2)` means that k is half of the product of m and v. If this is true, it can also be said that k is twice as much as the product of m and v, so this becomes
`2k = (mv)/(2) * 2` -->
`2k = mv`. If v is m times greater than 2k, you can rewrite this as
`(2k)/(m) = (mv)/(m)` which means that
`v = (2k)/(m)`.

14.)
`A = P + Prt`

-->
`A - P = Prt`

--->
`(A - P)/(Pt) = r`