Posted by Jab on Monday, October 24, 2011 at 5:44pm.
4. WALLPAPER A decorative wallpaper
strip has an area of 50 + 20r. If the
width of the strip is 5 inches, what
expression represents the length of the
strip?
So far I have that their GCF is 5?

Grade 9 Algebra  Steve, Monday, October 24, 2011 at 6:47pm
OK, you got that far, so factor out the 5
50+20r = 5(10+4r)
Since the width is the 5, the length is 10+4r
area = width * length

Grade 9 Algebra  Parrish J, Tuesday, October 25, 2011 at 10:06pm
100 + 40r

Grade 9 Algebra  Anonymous, Tuesday, November 1, 2011 at 8:00pm
n^212+4n
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