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TiliK225 [7]
3 years ago
7

i think of a number. if i divide the sum of 5 and the number by 3, the result is 2 less than one quarter of the number. find the

number
Mathematics
1 answer:
Marrrta [24]3 years ago
7 0

Answer:

x = 4.75

Step-by-step explanation:

<u>(5 +X</u><u> )/3</u>  = 2 - <u> X/4</u>

<h3>   <u>(5 +X</u><u> )/3</u>  = 8 - X  </h3><h3>5+ X = 3 (8 - X)   </h3><h3>  5+ X = 24 - 3X transposing terms</h3><h3>X+ 3X= 24 -5</h3><h3>   4X = 19</h3><h3>      X = 19/4 </h3><h3>X = 4.75</h3>
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2 years ago
Your neighbor has a bag with 5 oranges and 7 apples in it. You will be receiving two pieces of fruit from your neighbor. What is
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31.82% probability that you will receive 2 apples.

Step-by-step explanation:

The fruits are removed from the bag, which means that the hypergeometric distribution is used to solve this question.

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The probability of x sucesses is given by the following formula:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

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In this question:

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3 years ago
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