3 years ago

5 1/2x+1 3/4+2(3/4x-3/8)

Mathematics

1 answer:

amm18123 years ago

3 0

Answer:

7x+1

9 1/16

Step-by-step explanation:

Answer depend on if

x = Variable or x = Multiply

If x = Variable then the answer = 7x +1

If x = Multiply then the answer = 9 1/16

[RevyBreeze]

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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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3 years ago

Kim finish reading a book and 13.5 hours. He took Javis 845 minutes to read same book. Monica read the book and 49,500 seconds.

sesenic [268]

Put it all into the same measurement unit -
Kim: 48,600 seconds. (13.5*60=810, 810*60=48600)
Javis: 50,700 seconds. (845*60=50,700)
Monica: 49,500 seconds.

Kim finished the book first.

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3 years ago

PLEASE HELP ASAP!! THANKS SO MUCH

Wittaler [7]

Answer:

The relationship shows a direct linear variation with a constant of variation of 1.

Step-by-step explanation:

This is true because the slope of the equation is 1

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3 years ago

Read 2 more answers

Rewrite each expression as a single power (-4)⁶(-4)⁵ 13⁷x 13² 9¹⁴/9⁷ (-24)⁵/-24