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%

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap