Question

24/x=8/5 75/x=15/4 3/x=10/3 pro piedade fundamental

Answer 1

24 = 8
x     5
8x = 24.5
8x = 120 ==> x = 15
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75 =  15  
 x       4
15x = 300    
x = 20
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3 = 10
x     3
10x = 9
  x = 9/10