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ikoreanx3

T(x)=230/x+60 +450/x+70 Find a simplified form of T(x) by adding the rational expressions in the function's formula. Then use this form of the function to find T(4).

  • one year ago
  • one year ago

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  1. mathstudent55
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    |dw:1363489482623:dw|

    • one year ago
  2. ikoreanx3
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    yes.

    • one year ago
  3. ikoreanx3
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    • one year ago
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  4. Hope_nicole
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    cross multiply :)

    • one year ago
  5. mathstudent55
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    You need a common denominator which is (x + 60)(x + 70)

    • one year ago
  6. mathstudent55
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    |dw:1363489750699:dw|

    • one year ago
  7. Ghazi_Jr
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    Mathstudent why did you give her the wrong answer

    • one year ago
  8. Hope_nicole
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    i would go with cross multiplying.

    • one year ago
  9. mathstudent55
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    @Ghazi_Jr Why am I wrong?

    • one year ago
  10. Hope_nicole
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    |dw:1363489909549:dw|

    • one year ago
  11. mathstudent55
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    @Hope_nicole This is not an equation where one fraction equals the other. This is a sum of fractions.

    • one year ago
  12. Hope_nicole
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    ahh, my bad. i read the question wrong. thank you @mathstudent55

    • one year ago
  13. mathstudent55
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    |dw:1363490250241:dw|

    • one year ago
  14. mathstudent55
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    |dw:1363490323918:dw|

    • one year ago
  15. mathstudent55
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    |dw:1363490424809:dw|

    • one year ago
  16. ikoreanx3
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    Thank you, guys. :)

    • one year ago
  17. mathstudent55
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    wlcm

    • one year ago
  18. ikoreanx3
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    Wait o: answer was 20(34x+2155)/(x+60)(x+70)

    • one year ago
  19. ikoreanx3
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    for T(x) =

    • one year ago
  20. mathstudent55
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    Just factor the numerator. 680x + 43100 = 20(34x + 2155)

    • one year ago
  21. mathstudent55
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    |dw:1363490918059:dw|

    • one year ago
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