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anonymous

  • one year ago

Will Best answer! Last Question: A rectangle has an area of 72 square units. The width of the rectangle is 9 units. The length of the rectangle is 2x + 4. What is the rectangle's length?

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  1. anonymous
    • one year ago
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    @AbdullahM @Vocaloid

  2. anonymous
    • one year ago
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    How would I determine for x?

  3. AbdullahM
    • one year ago
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    Do you know how to calculate area for a rectangle?

  4. anonymous
    • one year ago
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    To be honest no, I havne't learned about it... My teacher said it was a trick question, and if we figured it out and explained it to him he would give us a prize.

  5. AbdullahM
    • one year ago
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    \(\sf\Large Area = Length \times Width\)

  6. anonymous
    • one year ago
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    okay

  7. AbdullahM
    • one year ago
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    They gave you \(\sf Area=72\\ Width = 9\\Length = 2x+4\)

  8. anonymous
    • one year ago
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    the length... how would we determine the length?

  9. Vocaloid
    • one year ago
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    area = length*width 72 = length*9 solve for length x is actually irrelevant in this question

  10. AbdullahM
    • one year ago
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    So, first lets plug that into the formula and then see. :)

  11. AbdullahM
    • one year ago
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    \(\sf\Large 72 = (2x+4) \times 9\)

  12. AbdullahM
    • one year ago
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    ^ true...

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