Question

Usando frações e regra de tres determine 18% de 2 700- 16% de 3 400- 56% de 2 350- 4,5% de 1 700

Answer 1

2700.  100
    x.      18 
100x=48.6000
x=48.600:100
x=486

3400  100
  x.       16
100x=54400
x=54400:100
x=544
  
2350.  100
  x.        56
100x=131600
x=131600:100
x=1316

1700.  100
  x.        4,5
100x=7650
x=7650:100
x=76,5