Rewriting an equation in function from?

Question

ok im just trying to get ahead if any smart people could do these problems i would really appreciate it,so that i can study them for my test PLEASE

1) P= 2L+2W



2) P= L+W(multiply)2


3) P= 2(L+W)


4) L= P- 2W/2


5) L= P/2W - 2


6) W= P/2 -21

Answer 1

Perimeter Formula

P - 2L + 2W

When the length and width are known of a rectangle to solve for perimeter

Example

Length = 10 ft

Width = 5 ft

Insert these valuel into the parimeter formula

P = 2L + 2W

P = 2(10) + 2(5)

P = 20 + 10

P = 30 ft

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When the perimeter and length is known and you want to solve for width.

30 = 2(10) + 2W

30 = 20 + 2W

30 - 20 = 20 + 2W - 20

10 = 2W

10/2 = 2W/2

5 = W

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When the Perimeter and width are known and solving for length.

P = 2L + 2W

30 = 2L +2(5)

30 = 2L + 10

30 - 10 = 2L + 10 - 10

20 = 2L

20/2 = 2L/2

10 = L

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There has to be some numerical value for perimeter, Length and width

Answer 2

I'm not sure what you mean.
1) This one is the formula for perimeter.
P(L,W) = 2L + 2W
#3 is also the formula for perimeter. It is the same as #1 if you distribute the 2 through the parentheses.

Answer 3

1) f(P) = 2L + 2W

Answer 4

not sure what you want... rewrite them in "word" form?