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anonymous

  • one year ago

help

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  1. anonymous
    • one year ago
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    @Michele_Laino

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  2. Michele_Laino
    • one year ago
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    if L is the length and W is the width, then we can write: \(L=5\cdot W\)

  3. Michele_Laino
    • one year ago
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    hint: the perimeter of your rectangle is: \(2(L+W)=96\)

  4. Michele_Laino
    • one year ago
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    now I substitute, so I get this: \(2(5W+W)=96\) please solve that equation for \(W\)

  5. anonymous
    • one year ago
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    how?

  6. LynFran
    • one year ago
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    start with the bracket ...add like terms ...(5W+W)

  7. anonymous
    • one year ago
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    would that equal 5w?

  8. LynFran
    • one year ago
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    no

  9. anonymous
    • one year ago
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    ?

  10. LynFran
    • one year ago
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    ok eg... what W+W=?

  11. anonymous
    • one year ago
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    W

  12. LynFran
    • one year ago
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    no 2W

  13. Michele_Laino
    • one year ago
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    what is: \(5W+W=...\)

  14. Michele_Laino
    • one year ago
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    you have to sum: \(5+1\)

  15. anonymous
    • one year ago
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    6

  16. Michele_Laino
    • one year ago
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    ok! so we can write: \(5W+W=6W\)

  17. Michele_Laino
    • one year ago
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    now what is \(2\cdot 6W=...?\)

  18. anonymous
    • one year ago
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    12w?

  19. Michele_Laino
    • one year ago
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    correct!

  20. Michele_Laino
    • one year ago
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    so we get this equation: \(12W=96\)

  21. anonymous
    • one year ago
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    ok

  22. Michele_Laino
    • one year ago
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    If I divide both sides by 12, I get: \[\frac{{12W}}{{12}} = \frac{{96}}{{12}}\]

  23. Michele_Laino
    • one year ago
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    so, what is \(96/12=...?\)

  24. Michele_Laino
    • one year ago
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    |dw:1444586909931:dw|

  25. anonymous
    • one year ago
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    so solve 96 divided by 12 right?

  26. Michele_Laino
    • one year ago
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    right!

  27. anonymous
    • one year ago
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    8!

  28. Michele_Laino
    • one year ago
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    correct! you got the right answer

  29. anonymous
    • one year ago
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    Great thank you

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