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Allisa [31]
3 years ago
8

Write an equation to represent 'twice a number (x) is fifty"​

Mathematics
2 answers:
Angelina_Jolie [31]3 years ago
5 0

Answer:

2x=50

Step-by-step explanation:

V125BC [204]3 years ago
3 0

Hi there,

Your question is "twice a number (x) is fifty"

Recall how a number is represented by x.

Twice a number would be represented as 2x.

Therefore, to represent that twice a number is equal to 50, that would result in the expression: 2x=50

If you're looking to solve this equation, it's often best to think about the "reverse" of the current equation.

Notice how 2 is multiplying the x.

To isolate x, divide that side by 2.

However, recall that whatever is done to one side of an equation must also be done to the other side of the equation. Therefore, you will need to divide both sides by 2.

2x=50

\frac{2x}{2} = \frac{50}{2}

x=25

Equation: 2x=50

Solving for x: 25

Hope that helps!

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8 0
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suppose you are given seven collinear points. Make a conjecture about the number of ways to connect different pairs of the point
soldier1979 [14.2K]

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3 years ago
A jar is filled with 74 different colored marbles, 10 of which are red, 38 of which are blue, and 26 of which are green. A playe
Alex_Xolod [135]

Solution :

Colored marble            Prize

     Red ----  10               20

    Blue --- 38                 10

   Green --- 26               5

P(red)  =  10/74  =  5/37

P(blue)  =  38/74  =  19/37

P( green)  = 26/74  =  13/37

Therefore,

 X      →     Red          Blue      Green

P(X)           5/37        19/37      13/37

The expected values are :

$20 \times \frac{5}{37} - 10 \times \frac{19}{37} - 5 \times \frac{13}{37}

= -4.189

Thus it is not profitable to play the game.

6 0
3 years ago
a proportional relationship is represented by the equation 2x=18y . If y=x , where k is the constant of proportionality, then wh
liubo4ka [24]

Answer: \bold{k=\dfrac{1}{9}}

<u>Step-by-step explanation:</u>

The constant of proportionality is y = kx.  Solve the given equation for "y" to find k-value in front of "x".

    18y = 2x

   \dfrac{18y}{18}=\dfrac{2x}{18}

    y=\dfrac{1}{9}x

k=\dfrac{1}{9}



8 0
3 years ago
What is the surface area of the cylinder? Express the answer in terms of Pi.
Tomtit [17]

Answer:

Second option: Surface area = 176*pi cm2

Step-by-step explanation:

The surface area of a cylinder is given by:

S = 2*pi*r^2 + 2*pi*r*h

Where r is the base radius and h is the height.

If we have that the diameter is 8 centimeters, the radius is 8/2 = 4 centimeters. So with r = 4 and h = 18, we have that the surface area is:

S = 2*pi*4^2 + 2*pi*4*18 = 176*pi cm2

So the answer is the second option.

5 0
4 years ago
Read 2 more answers
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