Justin is 10 years less than half his father's age. if justin is 12 years old, how old is his father?

22 because 12 plus 10 is 22, or because 10-12=2 2+20=22 20+2 because 10nis half of 20

Make an equation:

J = 1/2F - 10

Where 'J' represents Justin's age and 'F' represents his Father's age.

Plug in 12 for J:

12 = 1/2F - 10

Add 10 to both sides:

22 = 1/2F

Divide 1/2 to both sides or multiply by its reciprocal, 2:

F = 44