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.
<span>Table
Elapsed
Time (seconds) Distance Traveled (feet)
1 6.2
2 12.4
3 18.6
4 24.8
Explanation:
You can check that 6.2 / 1 = 12.4 / 2 = 18.6 / 3 = 24.8 / 4 = 6.2
So, the relationship between the distance traveled and the time elapsed is a constant:
distance traveled / time elapsed = 6.2
n / f = 6.2
=> n = 6.2 f
Answer: n = 6.2 f
</span>
4 3/4 - 2 = 2 3/4
2 3/4 - 1 1/10 is the same as 2 30/40 - 1 4/40 = 1 26/40
1 26/40 = 1 13/20 pounds left
The 90% confidence interval for the true difference between the population proportions is [ - 0.0908, - 0.0092]
Given,
= 731
= 644
= 0.33
= 0.28
z score for 90% confidence interval = 1.645
Here, the confidence interval formula :
(
) ± z 
Substituting the values, we get
(0.33 - 0.28) ± 1.645 
= 0.05 ± 1.645 
= 0.05 ± 1.645 
= 0.05 ± 1.645 × 0.0248093914
= 0. 05 ± 0.0408114489
Confidence interval:
- 0.05 - 0.0408114489 = - 0.0908114489 ≈ - 0.0908
- 0.05 + 0.0408114489 = - 0.0091885511 ≈ - 0.0092
The confidence interval for the true difference between the population proportions is [ - 0.0908, - 0.0092]
Learn more about confidence interval here:brainly.com/question/17421912
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