Question

Sam is 10 years younger than one half the age of his aunt. Let a represent his aunts age. Which algebraic expression can be use to determine Sam’s age if his aunt is 40?

Answer 1

sam's age = 1/2a - 10

a = 40, so

sam's age = 1/2 * (40) - 10

Explanation:

if sam is 10 years younger than one half the age of his aunt, then the equation for this would be 1/2 a (for one half of his aunt's age) - 10 (since he is 10 years younger).