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anonymous

  • one year ago

Hannah tells you that when variables are in the denominator, the equation four over seven plus eight over x equals one over two becomes solvable. She explains, "There is a value for x that makes the denominator zero, and you can't divide by zero."

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  1. anonymous
    • one year ago
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    4/5 + 3/x =1/2

  2. anonymous
    • one year ago
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    You can solve it by multiplying by the common denominator. Do you what it is?

  3. anonymous
    • one year ago
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    umm 10x?

  4. anonymous
    • one year ago
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    Right, so if you multiply all the fractions by 10x they will cancel

  5. anonymous
    • one year ago
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    ok i got 8x+30/ 10x =5x/10x

  6. anonymous
    • one year ago
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    |dw:1437252772767:dw|

  7. anonymous
    • one year ago
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    so -10?

  8. anonymous
    • one year ago
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    how would -1o be the answer?

  9. anonymous
    • one year ago
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    -10 is the solution to the equation.

  10. anonymous
    • one year ago
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    I know. But doesn't that mean George is right?

  11. anonymous
    • one year ago
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    no, it means he's wrong. There is a value for x that makes the denominator 0, but the equation is still solvable. -10 is the solution for x. 0 is the value where it wouldn't have a solution. Like if you were trying to graph 3/x, you would be able to for all values except 0

  12. anonymous
    • one year ago
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    Ohhh! Thanks sir<3

  13. anonymous
    • one year ago
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    yw

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spraguer (Moderator)
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