(6 x (7+5)) + 3 = 75
6 x 12 + 3 = 75
72 +3 = 75
I hope this helped you <3
Perimeter is the length of the whole outside of the shape, in this case the perimeter is 38. 7+7= 14 and 12+12= 24, 14+24= 38
90/18 equals 5 minutes for each window,so after 3 hours they would paint 36 windows. 180 minutes in three hours so 180/5=36
The probability you're asked to find is
where
is the event that either event occurs (A, B, or both), and
is the event that both events occur.
Recall that
which means
You're told that
,
, and (if I'm reading the diagram correctly)
.
So,
Another way of seeing this is that the event A consists of the regions "A not B" and "A and B". So the probability that "A not B" occurs is
Similarly, B consists of "B not A" and "A and B", so you have
So the probability that A or B, but not both, occur is
Answer:
b=5
Step-by-step explanation:
So, they basically equal each other since they both equal a.
6b+20=4b+30
Your first step is to move the variable to one side, by that I mean to subtract. You have to subtract the smallest number that has a variable, in this case it would be 4b.
6b+20= 4b+30
-4b -4b
Once you have subtracted the variable, and now that there is only one variable in the equation, you have to subtract 20, since that is the opposite of adding.
2b+20=30
-20 -20
Then, you have to divide 2 from 10, since that is the opposite of multiplying.
<u>2b</u>=<u>10</u>
2 2
Conclusion- b=5