Average =total sum of all the numbers / number of items in the set.
In other words, to find the average, add up all of the numbers in the set, and then divide by however many items you have.
A.
Test scores: 78,83 and 79
average =(78+83+79)/3 = 80
B.
weights : 2 lb, 5 lb, 7 lb, 5 lb, 9 lb, and 8 lb.
average = (2 lb+ 5 lb+ 7 lb+ 5 lb+ 9 lb+ +8 lb)/6 = 36/6 = 6lb
Answer:
83
Step-by-step explanation:
cos 65 = 35/ x
x = 35/ cos 65
x = 83m
hope it helps!
I don't know what were the statements given, but the answer is on the bottom of the pic ☺️
Since vertical angles are congruent, (4x+7)=5(x-4). So simplifying we get 4x+7=5x-20. If we add 20 on both sides we get 4x+27=5x. Now when we subtract x from both sides, we get x=27
12-2+22/8 (=12.75 so the option of doing nothing isn't right)
12-(2+2)2/8 (=11 so that option is gone)
(12-2)+22/8 (=12.75 so that option is gone as well)
12-2+(22/8) (=12.75 So that's gone as well)
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