16.5831239518, I think this is the result
<span>6 * $10 + 6 * $4 = 6 * $14
This illustrates the distributive law property — the identity is:
</span>a * b + a * c = a * (b + c)
In this example:
a = 6
b = 10
c = 4
So 6 * $10 + 6 * $4 = 6 * $14 is equivalent to 6 * $10 + 6 * $4 = 6 * ($10 + $4)
The average temperature for July over the past 30 years in Eloy and Arizona is 90°. The standard deviation is 2.1°. This implies that the temperature over these 30 years spans from 90° - 2.1° to 90° + 2.1°, which equals 87.9° to 90°. The average for the last five summers in Eloy and Arizona is 92°. To calculate the reduction, which is 2.5% from 92, we find that 89.70° is within the 87.9° to 90° range. Thus, it can be concluded that the two averages are likely identical.
