<span> value
Weighted mean average = ---------------------------
number of brands
value = mean price of computers from Store
#1 * number of brands from store #1 + mean price of computers from store #2 * number of brands from store #2
value = $799.99 * 2 + $679.99 * 4 = $4,319.94
number of brands = 2 + 4 = 6
weighted average = $4,319.94 / 6 = $ 719.99
Answer: option b. $719.99
</span>
X = 9 . Basically just divide 12 by 8 and then take that quotient (1.5) and multiply it by 6 in order to receive the product of 9.
Hope this helps! :)
Answer: 15 dimes and 13 nickels
Step-by-step explanation:
The answer is I believe b=70
For this case we must find the inverse of the following function:
Then, we follow the steps:
We change 
by y:
We exchange the variables:
We clear the variable "y":
We change y for 
Answer:
