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Elena-2011 [213]
3 years ago
13

Please help the answer choices are northwest,northeast,central,southwest,southeast for both of the boxes. GIVING 20 POINTS FOR T

HIS QUESTION!!
Timothy is reviewing the results of a soil saturation study that was completed in April of this year. The amounts of soil saturation in different parts of the county are provided in the table below.


Northwest 0.2

Northeast 0.504

Central 0.288

Southwest 0.6

Southeast 0.96



Last year, the average soil saturation in the entire county in April was 0.24. Complete the comparison statements about the soil saturation from each year.


Given the information from the study, the average soil saturation for the county last year is 1.2 times the saturation reported for the_________part of the county this year.


Also, the average soil saturation for the county last year is 0.25 of the saturation reported for the________part of the county this year.
Mathematics
1 answer:
mihalych1998 [28]3 years ago
8 0

Answer:

1. Northwest 2. Southeast

Step-by-step explanation:

So, basically, here we have to compare two values. When we want to know how many times one value is bigger or smaller than the other one, we use division.

Here, we are given the value of average soil saturation in the entire county from the last year (0.24)and we want to compare it to this year's values.

First, we know that last year's value was 1.2 times greater than one of the region's this year. To find that value, the easiest thing to do is to divide:

0.24 / 1.2 = 0.2

That means that 0.24 is 1.2 times bigger then 0.2. Looking at this year's results we find that 0.2 was the saturation of NORTHWEST region.

For the second part of the question, we'll do the same thing. Now, last year's value was 0.25 of one of the region's this year. To find it, again we divide:

0.24 / 0.25 = 0.96

Again, looking at this year's results, we see that 0.96 was the saturation of SOUTHEAST region.

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. The manager of a local small bank wants to estimate the average daily balance of all the checking accounts. Assume a random sa
MaRussiya [10]

Answer:

A 95% confidence interval estimate of the population mean (average) daily balance of all the checking accounts is $274.32 to $331.68

Step-by-step explanation:

Consider the provided information.

A random sample of 21 checking accounts at the bank are chosen,

That means n=21

df = n-1

df = 21-1=20

We need to  Construct and interpret a 95% confidence interval.

Determine t critical value for 95% confidence interval.

0.95=1-α

α=0.05

The sample size is small and it is a two tailed test.

From the t value table confidence interval is 2.086

An average daily balance is $303 and a standard deviation of $63.

CI=\bar x\pm t_c \times \frac{s}{\sqrt{n}}

Substitute the respective values.

CI=303\pm 2.086 \times \frac{63}{\sqrt{21}}

CI=303\pm 28.68

CI=274.32\ or\ 331.68

A 95% confidence interval estimate of the population mean (average) daily balance of all the checking accounts is $274.32 to $331.68

3 0
4 years ago
What value of x makes the equation true?<br> -1=1 – 4(-5+4x) – 4x
cluponka [151]

Answer:

x = 11/10

Step-by-step explanation:

we have from statement:

-1=1 - 4(-5+4x) – 4x

we apply distributive property:

-1 = 1 -4*(-5) -4*(4x) -4x

so we have:

-1= 1+20 -16x -4x

-1 = 21 -20x

-22=-20x

so we have:

x=22/20

x=11/10

we can substitute the x value found:

-1 = 1 - 4(-5+4*(11/10)) – 4*(11/10)

-1 = 1+20 -17.6 -4.4

-1 =21 -22

so we have:

-1 = -1

4 0
4 years ago
Write an equation for the function that includes the points (2,100)and (3,100)
Alenkasestr [34]

Answer:

y = 100 is the easiest function with these points.

Another one is  

y = (x - 2)(x - 3) + 100 = x^2 - 5·x + 106


4 0
3 years ago
Read 2 more answers
tom brouht 3 book total of 150 one book cost 50% more than the other two book what price of the more expensive book
vfiekz [6]
X = 1.5 times (150-x) 

x = 225 -1.5x

2.5 x = 225

x= 90 


The more expensive book was $90

Check your answer: 

x = 1.5 times (150-x)

90 = 1.5 times (150-90)

90 = 1.5 x60 

90=90
5 0
4 years ago
What is the relationship between the value of the digit 3 in 4,231 and in the value of the digit 3 in the number 3,421?
Marina CMI [18]

Answer:

A.

In 4231, the value of the digit 3 is 110 less than the value of the digit 3 in 3421.

Step-by-step explanation:

We can see that the value of 3 In 4231 is in ten while the value of 3 in 3421 is in thousands.

So to get the actual division factor, let's take 3300 and divide it by 30,

3300/30 = 110

So it's clear already, that the value of 3 in 4231 is 110 times less to the value in 3421

4 0
3 years ago
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