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Zanzabum
3 years ago
5

Find the missing value

Mathematics
1 answer:
yawa3891 [41]3 years ago
8 0
It is easier to write the equivalent ratios first, then use that information to find the missing values.

3. ratio: cars/trucks = 3/5, or trucks/cars = 5/3. Missing value: 6/3*5 = 10.

4. ratio: TVs/Computers = 2/7, or Computers/TVs = 7/2. Missing value: 21/7*2 = 6.
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We are looking to find P(X>60 students)

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We need to find the z-score of 60 students 
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To find the probability of P(Z>2), we can do 1 - P(Z<2)
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What is -2x - 10 = - 14x - 7?
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3 0
3 years ago
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3 years ago
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