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Sav [38]
3 years ago
13

Solve the proportion 2/10=11/x

Mathematics
1 answer:
alekssr [168]3 years ago
5 0

Answer:

x = 55

Step-by-step explanation:

Given

\frac{2}{10} = \frac{11}{x} ← cross- multiply

2x = 110 ( divide both sides by 2 )

x = 55

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Formula for the terms shows that it starts at 6 and decreases by 4
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Marta_Voda [28]
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Jason has 3/ 4 ton of stone to spread equally in 3 square yards. How many tons of stone will be spread in each square yard?
Alex787 [66]

Answer:

1 / 4 ton will cover 1 square yard

Step-by-step explanation:

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If x+ 1=23 what is the value of 3x +3?
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A research team is testing whether a fuel aditive increases a car's gas mileage. The maker of the additive claims that the addit
Thepotemich [5.8K]

Answer:

Yes  there is sufficient evidence to  reject the company's evidence

Step-by-step explanation:

From the question we are told that  

   The sample size is  n =  25

    The mean is  \= x = 5.3 \ mpg

     The standard deviation is  \sigma = 1.8 \  mpg

    The z-score is  z = -1.94

The null hypothesis is  H_o : \mu = 6 \ mpg

The alternative hypothesis is  H_a :  \mu \ne 6

 Generally the p-value is mathematically evaluated as  

           p-value   =  2 * P( Z

From the z table  the area under the normal curve to the left corresponding to    -1.94  is

         P( Z

=>  p-value   =  2 * 0.02619

=>  p-value   =  0.052

Let assume the level of significance is  \alpha = 0.05

 Hence the  p-value > \alpha this mean that

   The  decision rule is  

Fail to reject the null hypothesis

The conclusion is

 There is sufficient evidence to  reject the company's evidence

 

5 0
3 years ago
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