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ser-zykov [4K]
3 years ago
11

Simply 2+ 3/5x - 1 - 1/5x

Mathematics
1 answer:
WINSTONCH [101]3 years ago
5 0

Answer:

2+3/5x-1-1/5x

Final result :


 2x + 5

 ——————

   5  


Step by step solution :

Step  1  :


           1

Simplify   —

           5


Equation at the end of step  1  :


      3         1

 ((2+(—•x))-1)-(—•x)

      5         5


Step  2  :


           3

Simplify   —

           5


Equation at the end of step  2  :


         3                x

 ((2 +  (— • x)) -  1) -  —

         5                5


Step  3  :

Rewriting the whole as an Equivalent Fraction :


3.1   Adding a fraction to a whole



Step-by-step explanation:


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Samantha is making soup. To make the broth, she combines 2/3 cup of vegetable stock and 2/3 cup of chicken stock. Boiling the br
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2/3 cup + 2/3 cup = 1 1/3 cups
1 1/3 cups - 1/4 = 1 1/8 cups

There will be 1 1/8 cups left after the broth has been boiled.
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3 years ago
Statistics professors believe the average number of headaches per semester for all students is more than 18. From a random sampl
kompoz [17]

Complete Question

Statistics professors believe the average number of headaches per semester for all students is more than 18. From a random sample of 15 students, the professors find the mean number of headaches is 19 and the standard deviation is 1.7. Assume the population distribution of number of headaches is normal.the correct conclusion at \alpha =0.001 is?

Answer:

There is no sufficient evidence to support the professor believe

Step-by-step explanation:

From the question we are told that

     The population mean is  \mu =  18

     The sample size is  n  =  15

      The sample mean is  \=  x  =  19

      The standard deviation is  \sigma =  1.7

      The level of significance is  \alpha  =  0.001

The null hypothesis is  H_o:  \mu = 18

The  alternative hypothesis is  H_a :  \mu > 18

 The critical value of the level of significance from the normal distribution table is    

         Z_{\alpha } =  3.290527

The test hypothesis is mathematically represented as

           t =  \frac{\= x  -  \mu }{ \frac{\sigma}{ \sqrt{n} } }

substituting values  

         t =  \frac{ 19  - 18}{ \frac{1.7}{ \sqrt{15} } }

         t =  2.28

Looking at the value of  t and  Z_{\alpha } we can see that t <  Z_{\alpha } so we fail to reject the null hypothesis.

This mean that there is no sufficient evidence to support the professor believe

     

       

3 0
3 years ago
SIIOUS
I am Lyosha [343]

Answer: the distance is 8

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
0=-20.5x+16.35x-0.1245
Pachacha [2.7K]

The value of x in the given equation -20.5x+16.35x -0.1245 = 0\\ is 0.03

<u>Step-by-step explanation:</u>

The given equation is that -20.5x+16.35x -0.1245 = 0\\

<u>The steps to be followed to solve the equation are :</u>

Add the like terms together to reduce the equation in a simplified form.

Here, there are two x terms and they must be reduced to a single term.

For this, add the both terms together so that the equation is simplified into one x term and a constant term.

⇒ (-20.5x+16.35x) - 0.1245 = 0

⇒ 4.15x-0.1245 = 0

To eliminate the constant term on the left side of the equation, add 0.1245 on both sides.

⇒ 4.15x -0.1245+0.1245 = 0.1245

⇒ 4.15x = 0.1245

Now, the equation is further simplified by dividing 4.15 on both sides,

⇒ 4.15x / 4.15 = 0.1245/4.15

⇒ x = 0.03

Therefore, the value of x is 0.03

7 0
3 years ago
What is y=7/4x+6 if the input was 53
Shkiper50 [21]

7/4(53) + 6
92.75 + 6

98.75
5 0
3 years ago
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