a)
[tex] \frac{17}{100} \times x = 170 \\ 0.17x = 170 \\ x = 170 \div 0.17 \\ x= 17000 \div 17 \\ x = 1000[/tex]
b)
[tex] \frac{35}{100} \times x = 2975 \\ 0.35x = 2975 \\ x = 2975 \div 0.35 \\ x = 297500 \div 35 \\ x = 8500[/tex]
c)
[tex] \frac{125}{100} \times x = 9600 \\ 1.25x = 9600 \\ x = 9600 \div 1.25 \\ x = 960000 \div 125 \\ x = 7680[/tex]
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