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Svetradugi [14.3K]
2 years ago
14

If 95 is added to a number, the result is 35 less than three times the number. Find the number

Mathematics
2 answers:
tatiyna2 years ago
6 0
I my view the answer should be 35
erica [24]2 years ago
3 0

Let the number be x.

The required equation is,

95 + x = 3x - 35

We need to solve for x now.

95 + 35 = 3x - x (Transposition)

130 = 2x

2x = 130

x = 130 / 2

Therefore, the required number is 65.

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(x+5)-(2x-3)

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8-x or -x+8

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2 years ago
Which expression is equal to x + (y + z)?
arsen [322]
X+(y+z) is equal to saying (x+y)+z

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5 0
3 years ago
Read 2 more answers
Mr. Acosta, a sociologist, is doing a study to see if there is a relationship between the age of a young adult (18 to 35 years o
Alik [6]

Answer:

There is a relationship between the age of a young adult and the type of movie preferred.

Step-by-step explanation:

In this case we need to test whether there is a significance relationship between the age of a young adult and the type of movie preferred.

The hypothesis can be defined as:

<em>H₀</em>: Age of a young adult and movie preference are independent.

<em>Hₐ</em>: Age of a young adult and movie preference are not independent.

The test statistic is given as follows:

\chi^{2}=\sum\limits^{n}_{i=1}{\frac{(O_{i}-E_{i})^{2}}{E_{i}}}

Consider the table below.

The formula to compute the expected frequencies is:

E_{i}=\frac{\text{Row Total}\times \text{Column Total}}{\text{Total}}

The Chi-square test statistic value is:

\chi^{2}=\sum\limits^{n}_{i=1}{\frac{(O_{i}-E_{i})^{2}}{E_{i}}}=2.6013

The significance level of the test is, <em>α</em> = 0.05.

The degrees of freedom of the test is,

df = (r - 1)(c - 1)

   = (3 - 1)(3 - 1)

   = 2 × 2

   = 4

Compute the <em>p</em>-value as follows:

<em>p</em>-value = 0.6266

*Use a Chi square table.

As the <em>p-</em>value is more than the significance level the null hypothesis was failed to be rejected.

Thus, concluding that there is a relationship between the age of a young adult (18 to 35 years old) and the type of movie preferred.

5 0
3 years ago
Anbody plesssse help me
algol13
11: B
12: C
They are both supplementary angles meaning they add to 180 degrees
5 0
3 years ago
Read 2 more answers
Patricia is making two sizes of hamburgers: 0.5-pound andd 0.25-pound. How many of each size of hamburger could she make with 3.
mixas84 [53]

Answer:

She could make 5 of each type.

Step-by-step explanation:

If x is the number of 0.5 pound hamburgers and y is the number of 0.25 pound hamburgers:

0.5x + 0.25y = 3.75

Divide through by 0.25:

2x + y = 15

Some whole numbers which fit this relation  are x = 5 and y = 5.

8 0
2 years ago
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