Question

Dion spent m minutes on his math homework, g minutes on his german homework and 30 minutes on his biology homework. In total he spent t minutes on homework. what equation relates these quantities? if m is 40 and t is 95 what is g?

Answer 1

m + g + 30 = t

If m = 40 and t = 95,

g = t - m - 30 = 95 - 40 - 30 = 25.