Answer:
8.1 gallons
Step-by-step explanation:
Setup a proportion
240/9=216/x
x=8.1
9 = -7-2y
9 +7=16
16/-2 -2y/-2
-8 = y
The combination expression that demonstrates how the 20 is calculated using the combination pattern is 6C3
<h3>Permutation and Combination</h3>
While combination has to do with selection, permutation has to do with arrangement.
According to the combination rule
nCr = n!/(n-r)!r!
The expression that gives the result of 20 is expressed below;
6C3 = 6!/(6-3)!3!
6C3 = 6!/3!3!
6C3 = 6!/6*6
6C3 = 720/36
6C3 =20
Hence the combination expression that demonstrates how the 20 is calculated using the combination pattern is 6C3
Learn more on combination here: brainly.com/question/4658834
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Answer:
2.718
Step-by-step explanation:
The thousandths place is 3 to the right of the decimal (the 8).
Since the next number is 2, the number stays the same and does not round up.
Hope this helps :)
