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3 years ago

3x−1−(x+3)=1 PLEASE HELP IDK HOW TO DO IT

Mathematics

2 answers:

torisob [31]3 years ago

7 0

Answer:

x = 5/2

x = 2 1/2

x = 2.5

Step-by-step explanation:

3x - 1 - (x + 3) = 1

3x - 1 - x - 3 = 1

2x - 1 - 3 = 1

2x - 4 = 1

2x = 1 + 4

2x + 5

2x = 5

x = 5/2 → 2 1/2 → 2.5 ( can be written in any of these forms depending on what you need to do)

Hope this helped! :)

Allisa [31]3 years ago

5 0

Answer:

Step-by-step explanation:

3x−1−(x+3)=1

First remove the bracket

That's

3x - 1 - x - 3 = 1

Group the constants at the right side of the equation

That's

3x - x = 1 + 1 + 3

Simplify

We have

2x = 5

Divide both sides by 2

That's

2x / 2 = 5/2

Hope this helps you

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$P(E) = \frac{5}{6}$

Step-by-step explanation:

Step(i):-

Given data Two fair six-sided dice are rolled

S = { (1,1),(1,2),(1,3),(1,4),(1,5),(1,6) ,(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),((4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}

The number of exhaustive cases

n(S) =36

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A composite number has more than two factors

Example :-

Find composite numbers 1 to 10

{ 4, 6, 8.9,10}

Step(ii):-

Let 'E' be the event of getting the product of the two numbers is a composite number

= {(1,4),(1,5),(1,6),(2,2),(2,3),(2,4),(2,5),(2,6),(3,2),(3,3),(3,4),(3,5),(3,6),((4,1),(4,2),(4,3),(4,4),(4,5),(4,6)(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}

n(E) = 30

Conclusion:-

The probability that the product of the two numbers is a composite number

$P(E) = \frac{n(E)}{n(S)} = \frac{30}{36} = \frac{5}{6}$