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Amy876

-5/8c = 20 a. -34 b. -32 c. 32 d. 34

  • one year ago
  • one year ago

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  1. ajprincess
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    1.Multiply both sides by 8 2.divide by -5 both sides

    • one year ago
  2. Amy876
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    That doesn't work

    • one year ago
  3. ajprincess
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    |dw:1347991198303:dw||dw:1347991271931:dw|

    • one year ago
  4. livelaughlilz
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    This is a proportion. -5/8c = 20/1 To solve a proportion, cross multiply 20(8c) = -5(1) 160c = -5 Then divide both sides by 160 c = -5/160 c = -1/32

    • one year ago
  5. Amy876
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    Ok which is it -32 or 32??

    • one year ago
  6. ajprincess
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    what do u think?

    • one year ago
  7. ajprincess
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    -32 or 32?

    • one year ago
  8. livelaughlilz
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    check both of them in the original equation

    • one year ago
  9. Amy876
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    with 32 I got -20 and with -32 it was WAY off, I'm confused now....

    • one year ago
  10. livelaughlilz
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    i already said it's -1/32

    • one year ago
  11. livelaughlilz
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    This is a proportion. -5/8c = 20/1 To solve a proportion, cross multiply 20(8c) = -5(1) 160c = -5 Then divide both sides by 160 c = -5/160 c = -1/32

    • one year ago
  12. Amy876
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    -1/32 is NOT an option

    • one year ago
  13. ajprincess
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    |dw:1347991694227:dw| Decide nw.

    • one year ago
  14. livelaughlilz
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    -1/32 checks... in addition this calculator said -1/32 is right as well: http://www.wolframalpha.com/input/?i=-5+%2F+8x+%3D+20 the multiple choice options are all wrong

    • one year ago
  15. Amy876
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    It was -32 Thanks AJ Princess! <3

    • one year ago
  16. ajprincess
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    yw.:)

    • one year ago
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