b) calculate the new weighted average using the same grades but the different weights as shown below.\ngrade…

b) calculate the new weighted average using the same grades but the different weights as shown below.\ngrade item grade weight\nassignments 47 5\nmidterm 1 64 10\nmidterm 2 96 10\nfinal exam 90 75\nweighted average:

b) calculate the new weighted average using the same grades but the different weights as shown below.\ngrade item grade weight\nassignments 47 5\nmidterm 1 64 10\nmidterm 2 96 10\nfinal exam 90 75\nweighted average:

Answer

Explanation:

Step1: Calculate the product of each grade - item and its weight

$47\times5 = 235$, $64\times10=640$, $96\times10 = 960$, $90\times75=6750$

Step2: Calculate the sum of the products

$235 + 640+960 + 6750=8585$

Step3: Calculate the sum of the weights

$5 + 10+10 + 75=100$

Step4: Calculate the weighted - average

$\frac{8585}{100}=85.85$

Answer:

$85.85$