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velikii [3]
3 years ago
9

7+2x divided by 3 equals 5​

Mathematics
2 answers:
Trava [24]3 years ago
8 0

Answer:

x=4

Step-by-step explanation:

denpristay [2]3 years ago
8 0

Answer:

x = 4

Step-by-step explanation:

First multiply both sides by 3. This gives us:

7 + 2x = 15

Next, subract 7 from each side:

2x = 8

Last, divide each side by 2:

x = 4

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In calculus, the squeeze theorem, also known as the pinching theorem, the sandwich theorem, the sandwich rule, the police theorem, the between theorem and sometimes the squeeze lemma, is a theorem regarding the limit of a function. In Italy, the theorem is also known as theorem of carabinieri.
7 0
3 years ago
Read 2 more answers
Events A and B are independent. The probability of A occurring is 2/5. The probability of B occurring is 1/4. What is P(Aand B)
Elena L [17]

Answer:

The value of P(A and B)  is 1/10

Step-by-step explanation:

In case of independent events, the probability of one event doesn't depend on the probability of other events.

Therefore, for an independent events

P(A and B) = P(A) × P(B)

P(A and B) = 2/5  × 1/4

P(A and B) =2/20

P(A and B) =1/10

Therefore, the value of P(A and B)  is 1/10

6 0
3 years ago
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Write a system of inequalities using the given graph
ch4aika [34]

Take two points

  • (-2,1)
  • (0,-3)

Slope

  • m=-3-1/0+2=-4/2=-2

Parallel lines so slopes are equal

Only y intercept will vary

So both lines have y intercept at -3 and -1 respectively

The equations

  • y=-2x-3
  • y=-2x-1

Put (0,0) on first one

  • 0>-3

On second one

  • 0>-1

So as lines are dashed symbols remain >

The inequalities are

  • y>-2x-3
  • y>-2x-1
4 0
2 years ago
The first step for deriving the quadratic formula from the quadratic equation, 0 = ax2 + bx + c, is shown.
mote1985 [20]

Answer:

The first step for deriving the quadratic formula from the quadratic equation, 0 = ax2 + bx + c, is shown.

\: first the formula of quadratic equation  \:  =  - b ≠ \:  \sqrt{ \frac{ \:  {b  }^{2}  - 4ac}{ \: 2a} }

let's begin to solve this equation,,,

ax²  + bx + c = 0  \\ ax² + bx + c =0  \\  {x}^{2}  +  \frac{b}{a}  \:  + \frac{ {b}^{2} }{2a}  =  \frac{b2}{a}  -  \frac{c}{a}  \\ x +  \frac{ {b}^{2} }{2a}  =  -  \frac{ {b}^{2} }{2a}  -  \frac{c}{a}

<h3>MORE BASIC INFORMATION </h3>

an equation having the maximum power of the variable equal to is called the quadratic equation the general form of quadratic equation is ax² + bx +c =0 where a,b,c are real numbers a ≠0 x is variable •

a quadratic equation can be solved by two method by factorization and by formula

by factorization a quadratic equation can be solved by factorization only when the product AC can be divided into two such part that it had the sum of the difference of the two part is equal to b

by the formula of quadratic equation can be solved by \ - }

x =  \frac{ - b \sqrt{ {b}^{2} - 4ac } }{2a }  \\ root \: of \: equation \:  {ax}^{2}  + bx + c = 0 \\  - b -  \sqrt{ \frac{ {b}^{2}  - 4ac}{2a} }

7 0
2 years ago
Josh is mixing together concrete to build a brick wall. He's made 6 gallons of concrete with a mixture of 50% water. The instruc
katrin2010 [14]

Answer:

15%.,..........,..............,.......,..............,...........

3 0
4 years ago
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