3 years ago

Staci has 7 more cats than Taylor. Write an expression using x to represent how many cats Taylor has

Mathematics

1 answer:

goldenfox [79]3 years ago

3 0

Taylor has x cats
Staci has x+7 cats

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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:

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

P(Hispanic or Bilingual) = 0.429.

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Find the value of x (4x-5) and 55

Sedaia [141]

Answer:

x = 15

Step-by-step explanation:

(4x - 5) = 55

+ 5 + 5 Add 5 to both sides

4x = 60 Divide both sides by 4

x = 15

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