anonymous
  • anonymous
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?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
@ArkGoLucky
anonymous
  • anonymous
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
anonymous
  • anonymous
4 does not equal 7

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anonymous
  • anonymous
it dosent' have a answer box for not a answer
anonymous
  • anonymous
@jim_thompson5910
anonymous
  • anonymous
I have no idea either
anonymous
  • anonymous
oh wait nvm, there is an answer. The number just has to be a fraction
anonymous
  • anonymous
ok.
anonymous
  • anonymous
Is there a box for a fraction?
anonymous
  • anonymous
yea
anonymous
  • anonymous
okay cool
anonymous
  • anonymous
do u know it? lol
anonymous
  • anonymous
okay got
anonymous
  • anonymous
it
anonymous
  • anonymous
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
anonymous
  • anonymous
ask if you need help
anonymous
  • anonymous
I'll give you a hint use 4x
anonymous
  • anonymous
ok so what do i do now with the 4x?
anonymous
  • anonymous
is the answer going to be 2? @ArkGoLucky
anonymous
  • anonymous
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
anonymous
  • anonymous
so 7/4 is the answer or do i solve that?
anonymous
  • anonymous
no, now you solve for x, which is the number you're looking for
anonymous
  • anonymous
i got 47/144?
anonymous
  • anonymous
is that right or wrong?
anonymous
  • anonymous
almost
anonymous
  • anonymous
the numerator is right except it's a negative and the denominator is wrong
anonymous
  • anonymous
how did i get the denominator wrong?
anonymous
  • anonymous
did you solve x in\[\frac{ 4 }{ 9+4x }=\frac{ 7 }{ 4 }\]
anonymous
  • anonymous
yea and i got that big fraction
anonymous
  • anonymous
try plugging in your answer into that equation
anonymous
  • anonymous
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
anonymous
  • anonymous
when you do this, you get 16=7(9+4x) I'm sure you can solve for x now

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