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KE8717504

  • 3 years ago

what number mulitplied by the numerator and added to the denominator of 4/9 makes the resulting fraction equilavent to 7/4?? the number is?

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  1. KE8717504
    • 3 years ago
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    @ArkGoLucky

  2. ArkGoLucky
    • 3 years ago
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    um I don't think this is possible because the numerator of the first fraction is not changed so it can't equal the second fraction. ever

  3. ArkGoLucky
    • 3 years ago
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    4 does not equal 7

  4. KE8717504
    • 3 years ago
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    it dosent' have a answer box for not a answer

  5. KE8717504
    • 3 years ago
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    @jim_thompson5910

  6. KE8717504
    • 3 years ago
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    I have no idea either

  7. ArkGoLucky
    • 3 years ago
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    oh wait nvm, there is an answer. The number just has to be a fraction

  8. KE8717504
    • 3 years ago
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    ok.

  9. ArkGoLucky
    • 3 years ago
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    Is there a box for a fraction?

  10. KE8717504
    • 3 years ago
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    yea

  11. ArkGoLucky
    • 3 years ago
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    okay cool

  12. KE8717504
    • 3 years ago
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    do u know it? lol

  13. ArkGoLucky
    • 3 years ago
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    okay got

  14. ArkGoLucky
    • 3 years ago
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    it

  15. ArkGoLucky
    • 3 years ago
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    so here's what you do so make an equation say x is the number you're looking for try to think of a way you can make an equation using x

  16. ArkGoLucky
    • 3 years ago
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    ask if you need help

  17. ArkGoLucky
    • 3 years ago
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    I'll give you a hint use 4x

  18. KE8717504
    • 3 years ago
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    ok so what do i do now with the 4x?

  19. KE8717504
    • 3 years ago
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    is the answer going to be 2? @ArkGoLucky

  20. ArkGoLucky
    • 3 years ago
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    not quite. I'll just show you the equation. So you know that the number x, when multiplied by the numerator(4) then added to the denominator(9) equals 7/4 That means 4/9+4x=7/4

  21. KE8717504
    • 3 years ago
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    so 7/4 is the answer or do i solve that?

  22. ArkGoLucky
    • 3 years ago
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    no, now you solve for x, which is the number you're looking for

  23. KE8717504
    • 3 years ago
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    i got 47/144?

  24. KE8717504
    • 3 years ago
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    is that right or wrong?

  25. ArkGoLucky
    • 3 years ago
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    almost

  26. ArkGoLucky
    • 3 years ago
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    the numerator is right except it's a negative and the denominator is wrong

  27. KE8717504
    • 3 years ago
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    how did i get the denominator wrong?

  28. ArkGoLucky
    • 3 years ago
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    did you solve x in\[\frac{ 4 }{ 9+4x }=\frac{ 7 }{ 4 }\]

  29. KE8717504
    • 3 years ago
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    yea and i got that big fraction

  30. ArkGoLucky
    • 3 years ago
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    try plugging in your answer into that equation

  31. ArkGoLucky
    • 3 years ago
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    okay I'll show you how to solve for x multiply both sides of the equation by the common denominator. In this case, it is (4)(9+4x) this is to rid of the fractions

  32. ArkGoLucky
    • 3 years ago
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    when you do this, you get 16=7(9+4x) I'm sure you can solve for x now

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