3 years ago

Help this is worth 20 points!!

Mathematics

1 answer:

My name is Ann [436]3 years ago

3 0

It takes 59 earth days to rotate and 88 earth days to fully orbit the sun

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Cerrena [4.2K]

14 is 20% of 70

30 is 58% of 48

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2 years ago

Your total for dinner was $18.50. If you want to leave a 20% tip, how much will your grand total be?

Finger [1]

Answer:

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2 years ago

In a city school, 60% of students have blue eyes, 55% have dark hair, and 35% have blue eyes and dark hair. What is the probabil

gulaghasi [49]

Answer:

58%

Step-by-step explanation:

This is a problem of conditional probability.

Let A represent the event that student has dark hair.

So P(A) = 55% = 0.55

Let B represents the event that student has blue eyes.

So, P(B) = 60% = 0.60

Probability that student has blue eyes and dark hairs = P(A and B) = 35% = 0.35

We are to find the probability that a randomly selected student will have dark hair, given that the student has blue eyes. Using the given formula and values, we get:

$P(A|B)=\frac{P(A \cap B)}{P(B)}\\\\ P(A|B)=\frac{0.35}{0.60}\\\\ P(A|B)=0.58$

Therefore, there is 0.58 or 58% probability that the student will have dark hairs, given that the student has blue eyes.

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Vesnalui [34]

7/8 = 0.875.....multiply by 100 to get ur percent = 87.5%

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