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xxMikexx [17]
3 years ago
11

Simplify (15x+25)-(8x-15)

Mathematics
2 answers:
Harrizon [31]3 years ago
7 0
7x+40... If you go to mathwarehouse.com you can type your question in and you'll get an answer in less than a second
Serhud [2]3 years ago
4 0
15x+25-(8x-15)
15x+25-8x+15
7x+25-15
+7x+40
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Jonah reads 5 1/2 chapters in his book in 90 minutes how long will it take him to read one chapter
Lelu [443]

If it takes him 90 minutes to read 5 and a half chapters, it would take him 16.36 minutes to read one chapter.

5 0
3 years ago
The following are the last 7 days adjusted closing stock prices (in $) for Citigroup: 22, 25, 20, 15, 40, 55, 28 A) Compute the
son4ous [18]

Answer:

(A) The 25th percentile is 20.

(B) The mean of the data set is 20 and the median of the data set is 25. The data set is left-skewed.

Step-by-step explanation:

The data set arranged in ascending order is:

S = {15, 20, 22, 25, 28, 40, 55}

(A)

Compute the 25th percentile as follows:

25^{th} \text{Percentile}=[\frac{n+1}{4}]^{th}obs.\\\\=[\frac{7+1}{4}]^{th}obs.\\\\=2^{nd}obs.\\\\=20

Thus, the 25th percentile is 20. This value implies that exactly 25% of the observations are less than 20.

(B)

Compute the sample mean as follows:

\text{Mean}=\frac{22+25+20+15+40+55+28}{7}=\frac{205}{7}=29.29

Compute the median as follows:

For a set with odd number of observations, the median value if the middle value.

The middle value is 25.

Thus, the mean of the data set is 20 and the median of the data set is 25.

The Mean < Median.

This implies that the data set is left-skewed.

4 0
2 years ago
The perimeter of a rectangle is 86cm. Its shortest side has a length of 16cm. State the length of the longest side.
Artyom0805 [142]

Answer: length = 27 cm

Step-by-step explanation:

Perimeter = 2(l + w)

86 = 2(l + 16)

86 = 2l + 32

86 - 32 = 2l

l = 54/2 = 27 cm.

7 0
3 years ago
How to write one hundred seventy five and one hundred fifty five thousandth in standard form
Tpy6a [65]
One hundred seventy five__ 175
one hundred fifty fice thousand__1075
7 0
3 years ago
Find the length of the third side. If necessary, round to the nearest tenth.
alina1380 [7]

Answer:

A² + B² = C²

5² + x² = 9²

25 + x² = 81

x² = 81 – 25

x² = 56

x = √56

x = 7.483

x = 7.48

x = 7.5

I hope I helped you^_^

6 0
2 years ago
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