i need to find the average

average grade = 90%

Step-by-step explanation:

to find the average: add all the grade points up and divide it by the # of grades listed (in this case, 5)

100 + 95 + 75 + 100 + 80 = 450

450/5 = 90

average grade = 90%

Step-by-step explanation:

The average can be found by adding up all the values and dividing by the number of values.

1. Add the values

The values are her five test scores: 100, 95, 75, 100, 80

Add them : 100+ 95+75+100+80 = 450

2. Divide by the number of values

She took five tests, so there are five values. Divide 450 by 5.

450/5=90 = 90%

Her average grade is 90%

coin flip

non-answer:

choosing

sorry if this isnt what you're looking for i dont really understand the question