1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natalka [10]
3 years ago
12

By installing efficient water fixtures the average American can reduce water use to about 45 gallons of water per day.Using such

water fixtures about how many gallons of water would the average American use in December
A about 1200 gallons
B about 1500 gallons
C about 1600 gallons
orD about 2000 gallons
Mathematics
1 answer:
zimovet [89]3 years ago
6 0
Hello there.

<span>By installing efficient water fixtures the average American can reduce water use to about 45 gallons of water per day.Using such water fixtures about how many gallons of water would the average American use in December 
</span>
D about 2000 gallons
You might be interested in
A 72,000 gallon water tower is being drained. Two thousand gallons are drained in the first hour. How many hours will it take to
ololo11 [35]

Answer:

To drain the water tower it will take 36 hours.

Step-by-step explanation:

Given:

A 72,000 water tower is being drained, and in an hour 2000 gallons are drained.

Now, to calculate the hours it would take to drain total 72,000 gallons of water, we should divide the gallons of water drained in one hour by total gallons of water in the tower.

Gallons of total water in the tower ÷ Gallons of water drained per hour

72000\div 2000

=\ 36

Therefore, to drain the water tower it will take 36 hours.

6 0
3 years ago
A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Portland. The stu
iVinArrow [24]

Answer:

-0.061 < P_1 -P_2< 0.025

Step-by-step explanation:

Give data:

n_1 = 350

n_2 =250

x_1 = 23

x_2 = 21

\hat{P} 1 = \frac{x_1}{n_1} = \frac{23}{350} = 0.066

\hat{P} 2 = \frac{x_2}{n_2} = \frac{21}{250} = 0.084

for 95% confidence interval

\alpha = 1 - 0.95 = 0.05 and \alpha/2 = 0.025

z_{\alpha/2} = 1.96  from standard z- table

confidence interval for P_1  and P_2 is

\hat{P} 1 - \hat{P} 2 \pm z_{\alpja/2} \sqrt{\frac{\hat{P} 1(1-\hat{P} 1)}{n_1} +\frac{\hat{P} 2(1-\hat{P} 2)}{n_2}}

(0.066 - 0.084) \pm 1.96 \sqrt{\frac{0.066(1-0.066)}{350} +\frac{0.084(1-0.084)}{250}}

-0.018 \pm 0.043

confidence interval is

-0.018 - 0.043 < P_1 -P_2

-0.061 < P_1 -P_2< 0.025

7 0
3 years ago
Find the solution of y=x-3
PtichkaEL [24]

Answer:

x=3

Step-by-step explanation:

0 = x -3

-x = -3

change the sign to positive so x= 3

8 0
3 years ago
Find the point on the plane nearest to g 2x+5y+z=10 that is nearest (2,0,1)
mash [69]
A bc it makes the most sence
6 0
3 years ago
The measure of acidity (pH) can be found with the model where pH is the acidity and H is the hydrogen ion concentration. (Rememb
Over [174]
Refer to photo attached
7 0
3 years ago
Other questions:
  • A magician performing a magic act has asked for 2 volunteers from the audience to help with his routine. If there are 250 people
    14·2 answers
  • Tell whether the statement "All integers are rational numbers" is true or false. Explain your answer.
    13·1 answer
  • shania wants to measure the capacity of her bathroom sink. Circle the unit of measurement she should use to measure its capacity
    12·1 answer
  • Va rog va rog va rog ajutatima !!!!!!!!!!!!!!PLS 3x-16&lt;38
    6·1 answer
  • What is the simplified form of 24 y to the eighth power over 15 x to the fifth power divided by 8 y to the fourth power over 4 x
    6·2 answers
  • Figure 2 is a scaled copy of figure 1. Identify the point in figure 2 that corresponds to point M in figure 1.
    13·1 answer
  • Y= 3x - 6 what is the slope??
    6·1 answer
  • Someone pls help me ill give out brainliest pls don’t answer if you don’t know
    15·2 answers
  • I will mark brainliest when it lets me please help me if you can<br> x2 – 9 = 91
    14·1 answer
  • What are the dimensions of the rectangle shown on the coordinate plane?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!