Answer:
20%
Step-by-step explanation:
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Answer:
2400 gallons of water
Step-by-step explanation:
The new shower head releases 2 gallons per minute as compared to the old type.
each person spends an average of 8 minutes in shower per day. This means each person will use 8*2 number of gallons per day.
the number of persons in the family is 5.
if 1 person uses 8*2 gallons per day, 5 people will require 8*2*5
In a 30 days period the number of gallons used by the family will be
=8*2*5*30
=2400 gallons.
Answer : Probability that the pumping system will fail on any given day = 0.005
Explanation:
Probability that only older pump fail = P(A) = 0.10
Probability that only newer pump fail = P(B) = 0.05
Since they are independent events ,
then the conditions will be
P(A∩B) = P(A). P(B)
= 0.10 ×0.05
= 0.005
Hence, the probability will fail on any given day = 0.005
Synthetic division shows the remainder to be
7. Evaluating the function at x=5 shows the same thing.
Answer:
(x,y) = (5.8,-0.4)
Step-by-step explanation:
1.) x + 2y = 4.2 - 2y = 5
2.) { x + 2y =5
{ 4.2 - 2y = 5
3.) { x + 2y = 5
{ y = -0.4
4.) x + 2x ( -4.0 ) = 5
5.) x= 5.8 ( a possible solution )
6.) ( x , y ) = ( 5.8 , -0.4 ) check to the solution
7.) 5.8 + 2 x ( -0.4 ) = 4.2 - 2 x ( -0.4 ) = 5
8.) 5 =5 =5
