document.write( "Question 863498: The perimeter of a rectangle is 54 cm. It's length is 6 cm. What is it's width. solve algebraically and arithmetically.
\n" ); document.write( " p = 2(l + w)
\n" ); document.write( "54 = 2(6 + w)
\n" ); document.write( "54 = 12 +2 w
\n" ); document.write( "-12 -12
\n" ); document.write( "42 = 2w
\n" ); document.write( "w = 21 \r
\n" ); document.write( "\n" ); document.write( "second problem Jerry is 50 inches tall and is growing at the rate of 1/24 inch per month. Adam is 47 inches tall and is growing at the rate of 1/8 inch per month. If they continue to grow at the same rates for the next 4 years, in how many months will they be the same height?
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\n" ); document.write( "specify what basic mathematics concept/relation is used to support your solution\r
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Algebra.Com's Answer #520448 by josgarithmetic(39621)\"\" \"About 
You can put this solution on YOUR website!
Helping just with your second question.\r
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\n" ); document.write( "\n" ); document.write( "x is for months, and y is for how tall.
\n" ); document.write( "This is a simple two dimensional linear system problem.
\n" ); document.write( "Jerry starts at 50 inches and Adam at 47 inches in tallness.
\n" ); document.write( "Jerry's slope or growth rate is \"%281%2F24%29\" inches per month and Adam's is \"%281%2F8%29\" inche per month.\r
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\n" ); document.write( "\n" ); document.write( "Their tallness equations are:
\n" ); document.write( "Jerry: \"highlight%28y=%281%2F24%29x%2B50%29\"
\n" ); document.write( "Adam: \"highlight%28y=%281%2F8%29x%2B47%29\"\r
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\n" ); document.write( "\n" ); document.write( "You want to know the point of intersection for these two equations.
\n" ); document.write( "Find this intersection point, either algebraically or graphically.
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