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Papessa [141]
3 years ago
8

Electronics store received a shipment of 20 graphing calculators including eight that are defective four of the calculators are

selected to be sent to a local high school how many of these selections will contain no defective calculator
Mathematics
1 answer:
lisov135 [29]3 years ago
4 0

Answer:  If it is probability, there is a 40% chance that a school will receive a defective calculator if the selections are random.

If the calculators are tested and sorted, there can be 3 selections of 4 calculators sent to schools once the 8 defective ones are removed.

Step-by-step explanation: The question is unclear.  Is it about subtracting the bad ones and dividing the good ones? Or is it about Taking chances with the selection of calculators to be sent?

If they subtract: 20-8= 12 left  12÷4= 3 sets of good ones.

If they take chances 8/20 = .4 so there is a 40% chance that a bad calculator will be included in the selection.

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Answer:

45

Explanation:

<u>Given</u>:

f(x)= 6x+9

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Calculate the fraction of this recurring decimal. ​
Agata [3.3K]
<h3>Answer:  76/4995</h3>

========================================================

Explanation:

x = 0.0152152...

10x = 0.152152...

10000x = 152.152...

Subtract the last two equations to find that

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We're left with the equation 9990x = 152 which solves to x = 152/9990

Divide both parts of that fraction by 2 so that the fraction fully reduces to 76/4995 which is the final answer

You can use your calculator to see that 76/4995 = 0.0152152152152... which confirms the answer.

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