Answer:
n(B)=21.
Step-by-step explanation:
n(AUB) means the the number of elements in both A & B. And that includes the ones in common too.
n(A∩B) means the ones that in common.
n(A-B) refers to the elements that belong to A alone. That means the elements in A excluding the common elements.
n(B) is the number of elements that belong to B and that includes the common ones too.
Now coming to your question.
The total number of elements that can fit in both the sets is 36.
While the number of common elements is 16.
And also given that n(A-B)=15.
Now according to the definitions above....n(A) should include the ones that belong exclusively to A alone and also the ones in common.
So,
n(A)=n(A-B)+n(A∩B)
=15+16
=31
Therefore, n(A) is 31.
Now when n(AUB) is 36 and n(A) is 31, it is clear that the elements exclusive to B alone is 5, i.e.36-31.
Now n(B)=n(A∩B)+n(B-A)
Therefore, n(B) is 16+5 = 21.
n(B)=21.
Green = -1x - 1
Black = -2x
Orange = Y = 4
Blue = X = -4
Answer:
1000
Step-by-step explanation:
Primo car rental agency charges $44 per day plus $0.10 per mile.
44+0.10m= 44.1
ultimo car rental: 26+0.55m=26.55
26 + 0.55m = 4 * (44 + 0.10m )
26 + 0.55m = 176 + 0.40m
26 + 0.55m - 0.40m = 176 + 0.40m - 0.40m
26 + 0.15m = 176
0.15m = 150
150/0.15m
m= 1000
Answer: 1.25n
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Explanation:
Erica sells bracelets for $2 each. If she makes and sells n of them, then she gets 2n dollars of revenue.
Making n bracelets cost her a total of 0.75n dollars because each bracelet costs 0.75 dollars, or 75 cents.
Subtract the revenue and cost to get the profit
profit = revenue - cost
profit = 2n - 0.75n
profit = (2-0.75)n
profit = 1.25n
The expression 1.25n means that she earns $1.25 in profit per bracelet sold.
Answer:
Different
Step-by-step explanation:
The Same= Free points
