It takes 3 pumps 16 hours to empty a tank
Meaning it takes 48 hours for one pump by its self
So if there are 4 pumps
48/4 it would take them 12 hours
They would need to work 12 hours to do it in 1 day
Answer:
1. 5(4 + 6) + 1-0
2. 9(9b + 2)
3. 40
4. Nine plus r multiplied by four over five and then added to eight w.
5. The quotient is 
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
The 20% of members of club X that are also members of club Y can be written as: P(Y/X) = 20% (that is, the probability of belonging to Y given that it belongs to X)
The 30% of members of club Y that are also members of club X can be written as: P(X/Y) = 30% (that is, the probability of belonging to X given that it belongs to Y)
The formula of conditional probability of A given B is
P(A/B) = (A∩B) / P(A)
Where (A∩B) is the probability that both events A and B occur and P(A) is the probability of A.
Based on that, we can write,
P(Y/X) = P(Y∩X) / P(X) = 20 % = 0.2
P(X/Y) = P(Y∩X) / P(Y) = 30 % = 0.3
Clearing P(Y∩X) of both equations and equalizing,
P(Y/X).P(X) = P(X/Y).P(Y)
Moving terms
,
P(X) / P(Y) = P(X/Y) / P(Y/X) = 0.3 / 0.2 = 1.5
That is, P(X) is 1.5 times P(Y), which means that the amount of members of X is greater than the members of Y.
Answer:
i would say it's probably c
1) All angles of a rectangle are right angles, so the measure of angle CBA is 90 degrees.
2) Since all angles of a rectangle are right angles, angle BAD measures 90 degrees. Subtracting the 25 degrees of angle BAW from this, we get that angle CAD has a measure of 65 degrees.
3) Opposite sides of a rectangle are parallel, so by the alternate interior angles theorem, the measure of angle ACD is 25 degrees.
4) Because diagonals of a rectangle are congruent and bisect each other, this means BW=WA. So, since angles opposite equal sides in a triangle (in this case triangle ABW) are equal, the measure of angle ABW is 25 degrees. This means that the measure of angle CBD is 90-25=65 degrees.
5) In triangle AWB, since angles in a triangle add to 180 degrees, angle BWA measures 130 degrees.
6) Once again, since diagonals of a rectangle are congruent and bisect each other, AW=WD. So, the measures of angles WAD and ADW are each 65 degrees. Thus, because angles in a triangle (in this case triangle AWD) add to 180 degrees, the measure of angle AWD is 50 degrees.
