Question 179253
Call the perimeter {{{p}}}
length = {{{l}}}
width = {{{w}}} 
given:
(1) {{{p = 24}}}cm
(2) {{{l = w + 4}}}cm
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{{{p = 2w + 2l}}}
{{{24 = 2w + 2*(w + 4)}}}
{{{24 = 2w + 2w + 8}}}
{{{4w = 24 - 8}}}
{{{4w = 16}}}
{{{w = 4}}}
And, from (2),
{{{l = w + 4}}}
{{{l = 4 + 4}}}cm
{{{l = 8}}}cm answer
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Call the smallest even integer {{{n}}}
The next even integer will be {{{n + 2}}}
The next even integer will be {{{n + 4}}}
given:
{{{444 = n + n + 2 + n + 4}}}
{{{444 = 3n + 6}}}
{{{3n = 444 - 6}}}
{{{3n = 438}}}
{{{n = 146}}}
{{{n + 2 = 148}}}
{{{n + 4 = 150}}}
The 3 cosecutive even integers are 146, 148 and 150
check:
{{{444 = n + n + 2 + n + 4}}}
{{{444 = 146 + 148 + 150}}}
{{{444 = 444}}}
OK