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hammer [34]
3 years ago
7

What is a/3+4=6? I can't figure it out!

Mathematics
2 answers:
kotykmax [81]3 years ago
8 0

Answer:

a = 6

Step-by-step explanation:

first try to divide all numbers by 3 and the add 4 to it until you get 6

nika2105 [10]3 years ago
5 0

Answer:

a = 6

Step-by-step explanation:

If you are trying to solve for a then here it is.

a/3 + 4 = 6

subtract 4 from both sides

a/3 + 4 - 4 = 6 - 4

a/3 = 2

multiply both sides by 3

a/3 x 3 = 2 x 3

a = 6

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In a study of the accuracy of fast food​ drive-through orders, one restaurant had orders that were not accurate among orders obs
Lesechka [4]

Complete Question

In a study of the accuracy of fast food drive-through orders, one restaurant had 32 orders that were not accurate among 367 orders observed. Use a 0.05 significance level to test the claim that the rate of inaccurate orders is equal to 10%. Does the accuracy rate appear to be acceptable?

Answer:

The decision rule  is

  Fail to reject the null hypothesis

The conclusion is  

  There is sufficient evidence to show that the rate of inaccurate orders is equal to​ 10%

Step-by-step explanation:

Generally from the question we are told that

   The sample size is  n =  367

    The number of orders that were not accurate is  k = 32

    The population proportion for rate of inaccurate orders is  p = 0.10

The null hypothesis is  H_o :  p = 0.10

The alternative hypothesis is  H_a :  p \ne 0.10

Generally the sample proportion is mathematically represented as  

         \^ p = \frac{k}{n}

=>      \^ p = \frac{32}{367}

=>      \^ p = 0.0872

Generally the test statistics is mathematically represented as

         z= \frac{ \^ p - p }{ \sqrt{ \frac{ p(1 - p)}{ n} } }

=>      z= \frac{ 0.0872  - 0.10 }{ \sqrt{ \frac{ 0.10 (1 - 0.10 )}{367} } }  

=>      z= -0.8174

From the z table  the area under the normal curve to the left corresponding to  -0.8174 is  

         P(z <  -0.8173 )  = 0.20688

Generally the p-value is mathematically represented as

         p- value =  2 *  0.20688

=>      p- value =  0.4138

From the value obtained we see that  p-value >  \alpha hence

The decision rule  is

  Fail to reject the null hypothesis

The conclusion is  

  There is sufficient evidence to show that the rate of inaccurate orders is equal to​ 10%

 

4 0
2 years ago
Write a linear function f with the given values f(0) = -5 f(4) = -3
Maslowich

Answer:

f(x)=1/2x-5

Step-by-step explanation:

first f(0)=-5 is the y intercept and then you can find the slope using those two points to then find the slope intercept equation y=mx+b

3 0
3 years ago
Percent decrease from 20 to 11
nevsk [136]

Answer:

45 percent

Step-by-step explanation:

20-11=9

9 divided by 20= 0.45

0.45 x 100= 45%

4 0
3 years ago
Suppose there is a bag containing 5 red marbles ​(Upper R​), 5 pink marbles ​(Upper P​), 5 green marbles ​(Upper G​), and 5 blac
Radda [10]

Answer:

In the Explanation

Step-by-step explanation:

(a)From the attached probability tree, the possible outcomes are:

RR,RP,RG,RB,PR,PP,PG,PB,GR,GP,GB,GG,BR,BP,BG,BB

(b)Probability Distribution of Drawing Pink Marbles

\left|\begin{array}{c|c}Result&Probability\\----&----\\0&\frac{9}{16}\\----&---\\1& \frac{3}{8}\\----&---\\2&\frac{1}{16}\end{array}\right|

3 0
3 years ago
CAN SOMEONE PLS HELP ME I WILL MARK U BRAINLIEST
sukhopar [10]

Answer:

x \geqslant  1

Step-by-step explanation:

The expression in the square root should be greater than or equal to zero, because square root of a negative number does not give a real number.

x  - 1 \geqslant 0 \\ x \geqslant  1

6 0
2 years ago
Read 2 more answers
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