Mathematics: The formula P= 2/+ 2w means that the perimeter of a rectangle is equal to twice the sum of its length and its width. Solve P = 21+ 2 w for /

12 cases are needed to pack 185 kg of fruit. You determine this by dividing 185/15 and get 12.3, which means you have .3 Kg left over...

The formula P= 2/+ 2w means that the perimeter of

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05.02.2022

D. $l = \frac{P - 2w}{2}$

Step-by-step explanation:

Given:

P = 2l + 2w

Required:

Solve for l

Solution:

To solve for l, we would make l the subject of the given formula.

P = 2l + 2w

P = 2(l + w)

Divide both sides by 2

$\frac{P}{2} = \frac{2(l + w)}{2}$

$\frac{P}{2} = l + w$

Subtract w from both sides

$\frac{P}{2} - w = l + w - w$

$\frac{P}{2} - w = l$

$\frac{P}{2} - \frac{w}{1} = l$

$\frac{P - 2w}{2} = l$

Rewrite

$l = \frac{P - 2w}{2}$

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