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MauriceLong

  • 3 years ago

USE the formula to find the value of the remaining variable. P=2L+2W;L=10,W=78 P=_____

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  1. luxiliu
    • 3 years ago
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    Just substitute in L and W.

  2. MauriceLong
    • 3 years ago
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    how would i do that..

  3. luxiliu
    • 3 years ago
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    i.e. P=2L+2W P=2(10)+2(78)

  4. MauriceLong
    • 3 years ago
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    2*10+2(78)=1716 is that correct

  5. MauriceLong
    • 3 years ago
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    the correct answer is 176

  6. luxiliu
    • 3 years ago
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    Yep, its 176 :)

  7. MauriceLong
    • 3 years ago
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    can u help me with another problem

  8. MauriceLong
    • 3 years ago
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    The sum of a page number on the facing pages of a book is 89. What are the page numbers. The number on the left page is___ The number onthe right page is____

  9. luxiliu
    • 3 years ago
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    Well, lets give the first page number the symbol "x". because the second page number has to be one more than "x", it is "x+1". Therefore, the equation must be...?

  10. MauriceLong
    • 3 years ago
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    x+1=89

  11. luxiliu
    • 3 years ago
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    it would be 2x+1=89 because you are finding the sum of the two pages :)

  12. luxiliu
    • 3 years ago
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    So now just solve to find x :)

  13. MauriceLong
    • 3 years ago
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    x=44

  14. luxiliu
    • 3 years ago
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    Yep :) so the first page number is 44, and the second is 45 :)

  15. MauriceLong
    • 3 years ago
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    Solve for g. A=gr

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