1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
coldgirl [10]
3 years ago
12

Virginia es 8 años menor que Sonia y hace 10 años la edad de Virginia era 3/4 de la edad que Sonia tenía ¿cuál es la edad actual

de Sonia?​
Mathematics
1 answer:
frez [133]3 years ago
4 0

Answer: Can you translate for me?

Step-by-step explanation:

You might be interested in
mr. thomas’s class made a bar graph of the number of brothers and sisters each student has. how many student in the class have 1
valentina_108 [34]
Is there a picture that goes with the question?
4 0
3 years ago
Two number cubes are rolled. What is the probability that the sum of the numbers rolled is either 3 or 9?
Dmitry_Shevchenko [17]
4/18 is the answer i got
3 0
4 years ago
Find a markup of an item that has a wholsal cost of $120 and a sale price of $150
Lynna [10]

Answer:

20%

Step-by-step explanation:

5 0
3 years ago
Bonnie and Kelly are part of a group going to
mylen [45]

Answer:

The probability would be 2/9

Step-by-step explanation:

There are 5 seats in mezzanine

There 2 seats in upper level

There are 2 seats in Courtside

Bonnie and Kelly are only two of the 7 people in the group which in total is 9

since 9 seats were chosen and 2 of those were Courtside. 2/9 is the probability they will get the Courtside seats

3 0
3 years ago
The U.S. Department of Agriculture claims that the mean consumption of coffee by a person in the United States is 24.2 gallons p
Dmitry_Shevchenko [17]

Answer:

The decision rule is  

Reject the null hypothesis  

The conclusion is  

There is sufficient evidence to reject the claim  

Step-by-step explanation:

From the question we are told that

   The population mean is  \mu =  24.2 \ gallons \ per \ year

    The sample size is  n  =  101

     The sample mean is  \= x  =  23.5 \ gallons\ per\  year

     The standard deviation is  \sigma  =  3.2 \ gallons

The null hypothesis is  H_o  :  \mu =  24.2

 The alternative hypothesis is H_a :  \mu \ne 24.2

Generally the test statistics is mathematically represented as    

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

=>             z =  \frac{  23.5  - 24.2 }{ \frac{ 3.2}{ \sqrt{ 101} } }  

=>             z = -2.198

From the z table  the area under the normal curve to the left corresponding to    -2.198  is  

         P(Z <  -2.198 )  =   0.013975

Gnerally the  p-value is mathematically represented as

         p-value =   0.013975 * 2

=>      p-value =  0.02795

From the value obtained we have that  p-value  \  <  \  \alpha hence  

The decision rule is  

Reject the null hypothesis  

The conclusion is  

There is sufficient evidence to reject the claim  

Using the Rejection Regions for a z-test method

Generally from the z table  the critical value  of \frac{\alpha }{2}  is  

     z_{critical} =  \pm 1.96

Not we are using  \frac{\alpha }{2}  because it is a two - tailed test

   Now comparing the critical value and the test statistics we see that the

region covered by  the test statistics (i.e 2.198 <  z <  -2.198)   is greater than the region covered by  the critical value  (i.e 1.96 <  z <  -1.96)

Hence

The decision rule is  

Reject the null hypothesis  

The conclusion is  

There is sufficient evidence to reject the claim  

4 0
3 years ago
Other questions:
  • 10000000×66= b4rtrrrrrrt
    7·2 answers
  • Hello can you please help me posted picture of question
    13·2 answers
  • Which value for b will result in the greatest sum?
    6·1 answer
  • Suppose Blue Cab Company charges $2.85 a ride up to 0.1 miles and $0.30 for each additional tenth of a mile. If the mean distanc
    9·1 answer
  • Carter has 37 coins, all nickels and dimes in his piggy bank. The value of the coins is $3.10. How many dimes does Carter have?
    12·1 answer
  • Evaluate the expression 2+7×(-3)²
    15·1 answer
  • Help me solve -2+5n=4n+2
    8·2 answers
  • Which expressions represent the product of exactly two factors?
    13·1 answer
  • Which equation below best models the line of best fit for the data?
    11·1 answer
  • Drag each length to the correct location on the triangle. each length can be used more than once, but not all lengths will be us
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!