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Nina [5.8K]
3 years ago
12

What is 2(W+5)+4W=4(3+W)

Mathematics
1 answer:
yulyashka [42]3 years ago
8 0
You will need to use the distributive property of multiplication over addition to solve this problem.
2w+10+4w=12+w
combine like terms using the associative property
6w+10=12+w
solve the equation
6w+10-10=12-10+w
6w÷6=2+w÷6
w=2+w/6
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A local school has 14 kindergarten teachers. Of these teachers, 4 are Hispanic, 5 are bilingual, and 3 are both Hispanic and bil
navik [9.2K]

Answer:

P(Hispanic or Bilingual) = 0.429.

Step-by-step explanation:

This question is solved treating these events as Venn probabilities.

I am going to say that:

Event A: Hispanic

Event B: Bilingual

Out of 14 teachers, 4 are Hispanic, 5 are billingual, and 3 are both:

This means that:

P(A) = \frac{4}{14}, P(B) = \frac{5}{14}, P(A \cap B) = \frac{3}{14}

What is the probability that teacher is Hispanic or bilingual?

This is:

P(A \cup B) = P(A) + P(B) - P(A \cap B)

With the values that the exercise gives us:

P(A \cup B) = \frac{4}{14} + \frac{5}{14} - \frac{3}{14} = \frac{4 + 5 - 3}{14} = \frac{6}{14} = 0.429

So

P(Hispanic or Bilingual) = 0.429.

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3 years ago
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Answer:

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Or

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Step-by-step explanation:

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xcos(45) = x/sqrt(2)

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