The average (arithmetic mean) of a - 5 and a is x, and the average of a and a + 9 is y. What is the average of x and y? a + 1
B) a +2
C) 2a + 1
D) 2a + 2

The answer is "Option A"

Step-by-step explanation:

Given:

solve the above equation:

add both value (x and y):

average of x and y:

ιт ωιℓℓ вєтнє fιяѕт ¢нσι¢є(α.)

convert the exponential equation to a logarithmic equation using the logarithm base (6) of the right side (36) equals the exponent (2).

ℓσg6(36)=2

нσρє ι ¢συℓ∂ нєℓρ уα