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iren [92.7K]
2 years ago
14

What is the solution to the equation 2x-3/4 ?

Mathematics
1 answer:
amm18122 years ago
7 0
The solution to this equation is in the picture i’ve put below!

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135 UB students were surveyed and asked how many hours a week they spent studying. The results are in the table below?
lesya692 [45]

Answer:

B) 11/27 ; c.) 5/27; D.) 17/27; E.) 3/13 ; F) 5/9

Step-by-step explanation:

- - - - - <5hrs - - (5 - 10hrs) - - (>10 hrs) - - Total

Male (M) 25 - - - - -- 25 - - - - - 20 - - - - 70

Female (F) 20 - - - - - - 30 - - - - - 15 - - - - 65

Total - - - 45 - - - - - - 55 - - - - - 35 - - - - 135

Probability = (required outcome / Total possible outcomes)

B) probability that a student studied(5 - 10 hours)

P(5 to 10 hours) = n(5 - 10 hours) / n(total) = 55/135 = 11/27

C) Find the probability that a student is a male and spends less than 5 hours studying

P(male and < 5 hours) = n(male ∩> 5 hours) / n(total) = 25/135 = 5/27

D) Find the probability that a student is a female or spends more than 10 hours studying.

P(female) + P(> 10hours) - P(Female ∩ > 10 hours) = 65/135 + 35/135 - 15/135 = 85/135 = 17/27

E.) Find the probability that a student spends more than 10 hours studying given that the student is a female?

n(Female ∩ > 10 hours) / n(Female)

15/65 = 3/13

F) Find the probability that a student is a male given that he spends less than 5 hours studying

n(male ∩ < 5hrs) / n(< 5 hours) = 25/ 45 = 5/9

5 0
3 years ago
PLSSS HELP IF YOU TURLY KNOW THISS
lana66690 [7]

Answer:

3^13

Step-by-step explanation:

6 0
3 years ago
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shepuryov [24]

Answer:

14

Step-by-step explanation:

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2 years ago
What is the solution to the following system
Archy [21]

C is the answer.............

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The length of the sides of a triangle are three consecutive integers. If the perimeter is 87, find the dimensions of the triangl
nadezda [96]
You can divide 87 by 3 which is 29, so each angle will be 29 degrees.
Since they are consecutive, that means they will all measure the same.

Hope this helps! :)
8 0
3 years ago
Read 2 more answers
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