Number C divided by 0.4 is 10. What is C?
\(We\ write\ equation\\\\\frac{c}{0,4}=10\ |*0,4\\\\c=10*0,4\\\\c=4\\\\C\ is\ equal\ to\ 4.\)
C/0.4 = 10multiply through by 0.4C = 0.410C = 4