n(A-B) denotes elements which are in A but not in B
n(Au B) denotes elements in A and B
n(AnB) denotes elements that are common in A and B
Now I will add one more set
n(B-A) which denotes elements in B but not in A
So, n(AuB) = n(A-B) + n( B-A) +n(AnB)
70 = 18 +n(B-A) + 25
70 = 43 + n(B-A)
n(B-A) = 70-43
n(B-A) = 27
So, n(B) = n( B-A) + n( AnB)
= 27+25
= 52
I believe the correct answer is C) Ten times the quantity of a number plus two. Hope this helps! =)
It is 0.09. this is because you do 3 multiply by 0.6. then you do 1.8divided by 20 because you want per one minute so that becomes 0.09 and that is your answer. Hope this helps I am really close to ranking up so if you can award me the most brainliest that would be great!! thanks and your welcome
