Find the mean of the first four test scores first.
(Add all numbers in set and divide by how many numbers there are)
81 + 87 + 71 + 89 = 328 / 4 = 82
Then, find the mean with the 85 added as the fifth term.
81 + 87 + 71 + 89 + 85 = 413 / 5 = 82.6
The impact that the 85 had on the mean test score was that the mean/average increased by 0.6.
Answer:
-2/9
Step-by-step explanation:
• There is a 7 centimeter difference
• They both have 10 centimeters
• They are both made out of string
• They both use centimeters
Answer:
G = 2/3
Step-by-step explanation:
-13G + 10 = 2(-5G + 4) Distribute the 2 to (-5G + 4)
-13G + 10 = -10G + 8
+13G +13G Add 13G to both sides
10 = 3G + 8
-8 -8 Subtract 8 from both sides
2 = 3G Divide both sides by 3
2/3 = G
If this answer is correct, please make me Brainliest!
First bring all terms in 'a' to the left side of the formula by subtracting ac from both sides
ab - ac - cd = ac - ac
ab - ac - cd = 0
now add cd to both sides
ab - ac -cd + cd = cd
ab - ac = cd
now factor the left side by taking out the 'a'
a(b-c) = cd
now divide both sides by (b-c)
a = cd / (b-c)
done
