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IrinaK [193]
3 years ago
14

Marlene decided to buy 2 bags of apples weighing 3 1/4 pounds each, instead of 3 bags weighing 2 2/5 pounds each. Did she end up

with more apples or fewer apples by buying the bigger bags?
To find the total weight of 2 bags of apples weighing 3 and 1/4 pounds, multiply.

Answer Choices: 5 1/4, 5 1/2, 6 1/4, 6 1/2.

To find the total weight of 3 bags weighing 2 and 2/5 pounds, multiply.

Answer Choices: 5 2/5, 6 2/5, 7 1/5, 7 2/5.

She ended up purchasing [fewer, more, the same amount of,] apples by buying the bigger bags.

SHORT QUESTION (answer if you are too lazy to rad all of this lol like me): Multiply 3 and 1/4 times 2, Multiply 2 and 2/5 times 3. Thanks <3

I will mark brainliest if the answer is correct :) But you have to ask for brainliest too! Thanks so much, I really need a quick answer :)

Mathematics
1 answer:
navik [9.2K]3 years ago
6 0

The first fill in the blank is 6 1/2

The second one is 7 1/5

So, she ended up buying fewer apples

Can I have a brainliest?

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Answer:

The probability is  P(\=  X  >  x ) = 0.78814

Step-by-step explanation:

From the question we are given that

     The population  mean is  \mu  =  149

     The standard deviation is  \sigma  =  14

     The random number    x  =  147.81

      The sample  size is  n  = 88

The probability that  the sample mean would be greater than P(\=  X  >  x ) =  P( \frac{ \= x   -  \mu   }{\sigma_{\= x} }  > \frac{ x - \mu  }{\sigma_{\= x} }  )

Generally the z- score of this normal distribution is mathematically represented as

       Z  =  \frac{ \=  x   -  \mu  }{\sigma_{\= x} }

Now

        \sigma_{\= x } =  \frac{\sigma }{\sqrt{n} }

substituting values

         \sigma_{\= x } =  \frac{14 }{\sqrt{88} }

         \sigma_{\= x } =  1.492

Which implies that

         P(\=  X  >  x ) =  P( Z  > \frac{ 147.81  - 149   }{ 1.492}  )

        P(\=  X  >  x ) =  P( Z  > -0.80  )

Now from the z-table  the  probability is  found to be

        P(\=  X  >  x ) = 0.78814

5 0
3 years ago
I will give Brainliest and five stars to correct answer
Oduvanchick [21]
A(n)=a(1)+d(n-1),    d=a(16)-a(15)=-5-(-53)=48
a(15)=a(1)+d*(15-1),  
-53=a(1)+48*(15-1),
a(1)=-53-48*14= -725
a(n)=-725+48(n-1)
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