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Grade 9 Algebra

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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

So far I have that their GCF is 5?

  • Grade 9 Algebra -

    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 -

    100 + 40r

  • Grade 9 Algebra -


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