The sum of four numbers is 20 and their average is 5. When a fifth is added, the new average is 6. What is the fifth number?
2 answers:
Answer:
10
Step-by-step explanation:
We'll note the numbers as 

Answer:
10.
Step-by-step explanation:
The average of the 5 numbers =
(20 + x) / 5 = 6 where x is the 5th number.
20 + x = 30
x = 10
The fifth number is 10.
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Answer:
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Step-by-step explanation:
Answer:
20%
Step-by-step explanation:
4/20 = x/100
100*4 =400
400/20 = 20
so
4/20 = 20/100
20.41
(one pound is .454 kilograms)
Is this for real? Lol anyways I’m guessing B
9/3 then simplify it will be 1/3