princessluna450
princessluna450 princessluna450
  • 28-10-2014
  • Mathematics
contestada

solve the proportion 4/5=28/x using two different methods. explain each method

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Sikha
Sikha Sikha
  • 28-10-2014
4x=28x5
4x=140
4x=35

or you can use the horizontal method

4=28
5=x

you know that 4x7=28
so you obviously know that 5x7 has to give you x which is 35
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