Question

Evaluate 1/5r + 9/20 when r = 1/4
1/5 ( blank) + 9/20 = blank + 9/20= Answer?

Answer 1

Explanation:

Substitute for r.

1/5(1/4) + 9/20 -> 1/20 + 9/20 = 10/20.

Simplify the final answer.

10/20 = 1/2