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cupoosta [38]
3 years ago
14

PLEASE ANSWER QUICKLY!!!

Mathematics
1 answer:
marin [14]3 years ago
8 0
6 and 7
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The daily water consumption for an Ohio community is normally distributed with a mean consumption of 722,500 gallons and a stand
Allisa [31]

Answer:

0.0060

Step-by-step explanation:

The z-score is given by

<em>z = (866,475-722,500)/57,429 = 2.51 </em>

The probability is given by the area under the Normal curve N(0,1) to the <em>right</em> of 2.51

In <em>Excel </em> this value is found with the formula

=1-NORMDIST(2.51,0,1,1)

and in <em>OpenOffice Calc </em>

=1-NORMDIST(2.51;0;1;1)

<em> (NORMDIST(2.51;0;1;1) gives the area to the left of 2.51, so 1-NORMDIST(2.51;0;1;1) gives the area to the right of 2.51) </em>

and equals 0.0060

8 0
3 years ago
Blood type AB is found in only 3% of the population.† If 345 people are chosen at random, find the probability of the following.
Anna007 [38]

Answer:

345 times 0.03 = 10.35 but we cant have 0.35 of a person so it is 10 people

Step-by-step explanation:

3 0
3 years ago
A cheesecake recipe says, “Mix 12 oz of cream cheese with 15 oz of
Leno4ka [110]

Answer:

0.8 oz of cream cheese for each ounce of sugar

Step-by-step explanation:

All you need to do is divide cream cheese oz by sugar oz. so,

12/15 = 0.8

8 0
3 years ago
For every 15 minutes of a show, there are two minutes to commercial. At this rate, if leila has seen 45 minutes of a show, how m
Ainat [17]

Answer:

51 minutes.

Step-by-step explanation:

We have been given that for every 15 minutes of a show, there are two minutes to commercial. At this rate, Leila has seen 45 minutes of a show. We are asked to find the time for which Leila has been watching TV.

We will use proportions to solve our given problem.

\frac{\text{Minutes of TV show + Advertisement}}{\text{Minutes of TV show}}=\frac{15+2}{15}

\frac{\text{Minutes of TV show + Advertisement}}{\text{Minutes of TV show}}=\frac{17}{15}  

Upon substituting our given values, we will get:

\frac{\text{Minutes of TV show + Advertisement}}{45}=\frac{17}{15}

\frac{\text{Minutes of TV show + Advertisement}}{45}\times 45=\frac{17}{15}\times 45

\text{Minutes of TV show + Advertisement}=\frac{17}{1}\times 3

\text{Minutes of TV show + Advertisement}=51

Therefore, Leila has been watching TV together for 51 minutes.

8 0
3 years ago
The perimeter of a basketball court is 84 meters length and 6 meters longer than twice the width.What is the length and width
GuDViN [60]
Perimeter is width times length. All you have to do is do x=84/4 and your answer is 21 for the length and for the width it s 6. x=504/6 =84. Good luck. 
5 0
4 years ago
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