Question

Weight of Area

Answer 1

Answer:

(95+89+80+94)/400×100/25=3.58is required grade

Answer 2

(95x0.05) + (89x0.25) + (80x0.20) + (94x0.50)

= his grade is 90

convert all the percentages to decimals
multiply each decimal to its corresponding grade
add all the products to get: 90