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3 years ago

Mrs. Phillips is grading the semester exams for her Advanced Algebra course.

1 answer:

6 0

This is a very good visual representation. Whether it is the best, or not, depends on the purposes: First, you can see right away where the top 25% (4th quartile) scored by looking at the right hand whisker. Second, you get two measures of variation for the data, the range and the interquartile range. Finally, by looking at the left whisker, you can see that most of the variation comes from the bottom quartile: 3/4 of the students scored between 80 and 100, while 1/4 scored between 80 and 50. As a teacher, I would want more detail about the bottom quartile. It might be that one student scored 50 and everyone else scored between 70 and 80. But I wouldn't need to have it graphically represented. This graph shows me that the class overall is in good shape: The median is close to 90. But there is at least one student, and up to 25 % of the class who did poorly on an exam that otherwise looks very easy.

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PLEASE HELPPPP<br><br> 4(x−2 1/4)=−3.7

LekaFEV [45]

First let’s convert the mixed numbers to improper fractions 2 1/4 =9/4
Then u get 4(X-9/4) =-3.7
Now your gonna divide both sides by four
4(X-9/4) over 4 = -3.7 over 4
4/4 =1 …X=-9/4
-3.7/4 = -0.925
Now you’re going to add 9/4 to each side
X-9/4+9/4=-0.925 +9/4
-9/4 + 9/4 =0 (X)
Now you have just -0.925 and nine fourths
I converted 9/4 —> 2.25
Then u still have -0.925
So add 2.25+-0.925 u get ur X which is 1.325 (this is ur answer)

5 0

3 years ago

A building worth $829,000 is depreciated for tax purposes by its owner using the straight-line depreciation method.

Delvig [45]

The value of the building would be $699,400 in 4 years.

<h3>What will be the value of the building?</h3>

Depreciation is the when the value of an asset reduces as a result of wear and tear. Straight line depreciation is a method used in depreciating the value of an asset linearly with the passage of time.

The equation that can be used to determine the value of the building with a straight line depreciation is:

Value of the asset = initial value of the asset - (number of months x deprecation rate)

y = 829,000 - 2700x

The first step is to determine the number of months it would take for the building to have a value of $699,400.

$699,400 = 829,000 - 2700x

829,000 - 699,400 = 2,700x

129,600 = 2,700x

x = 129,600 / 2,700

x = 48 months

Now convert, months to years

1 year = 12 months

48 / 12 = 4 years

To learn more about depreciation, please check: brainly.com/question/11974283

#SPJ1

8 0

1 year ago

A study showed that the ratio of the number of people who get their news from print sources to the number of people who get thei

iogann1982 [59]

Answer:

270 = number who get news from print sources

630 = number who get news from social media

Step-by-step explanation:

Let 3x = number who get news from print sources

and 7x = number who get news from social media

Then 3x + 7x = 900

10x = 900

x = 90

3x = 3(90) = 270 = number who get news from print sources

7x = 7(90) = 630 = number who get news from social media

Check: 270/630 = 3/7 and 270 + 630 = 900

6 0

3 years ago

What percent is 88 of 106?

Neporo4naja [7]

So basically
what percent (x%) is (=) 88 (88) out of (88/) 106 (106)
x%=88/106
x%=0.83
percent means partst out of 100
x%=x/100
x/100=0.83
multiply both isdes by 100
x=83
83%

8 0

4 years ago

Please answer this and show work if possible. thanks! :)

Ivahew [28]

Yes they do. Notice that for each step in x there a +4 in y. If you want an equation we can set it up with the inforation given
$y = 4x$
Yes theres a relationship because for every meter she runs it takes her 4 minutes for each.

(Kelly must be really tired or is just really slow)

7 0

3 years ago