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
E.5 hours
All you have to do is subtract 85 from 510 till you have 0
Answer:
8.29
Step-by-step explanation:
49.74 divided by 6 = 8.29
To check: 8.29 x 6 = 49.74
Hope this helped. Feel free to ask questions!
Answer:
10
Step-by-step explanation:
New price = <u>90 dollars</u>
<u></u>
25% of 120 = 30
Price is reduced 25% from 120 so,
120 - 30 = 90
Amount of discount = 30
