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4 years ago

What is the justification for each step in the solution of the equation 3(2x + 7) - 4 = 53 - 3x?

1 answer:

3 0

Step 1 3(2x+7)-4=53-3x given
step 2 6x+21-4=53-3x expanding
step 3 6x+17=53-3x adding (21-4)
step 4 9x+17=53 adding 3x to both parts
step 5 9x=36 subtracting 17 from both sides
step 6 x=4 divding by 9

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Name 3 rays in this geometric construction E A D B Your answer

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3 years ago

Tom pays $528.90 for a computer in a sale. The original price had been reduced by 18%. Calculate the original price of the compu

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624.102

Step-by-step explanation:

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3 years ago

Which equation is in point-slope form and depicts the equation of this line?

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Answer:

i believe the answer is A

Step-by-step explanation:

(y + 4) = -(1)/(3)(x + 1)

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3 years ago

Roulette is a casino game that involves spinning a ball on a wheel that is marked numbered squares that are red, black, or green

Hunter-Best [27]

Answer:

1/19

Step-by-step explanation:

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3 years ago

Write a linear equation representing the information shown in the table.

Law Incorporation [45]

Answer:

Step-by-step explanation:

This is how I write

y=kx+m

but I have seen some write it like this:

y=mx+b

Well both of them are the same thing, I'll use the first one because I'm more comfortable with it.

y=kx+m

To find out what k

$k = \frac{y2 - y1}{x2 - x1}$

So you first need to choose two points.

I'll go for (0,-5) and (2,0)

$k = \frac{0 - 5}{2 - 0}$

$k = \frac{ - 5}{2}$

Now you could insert k into the equation and it will look like this.

$y = \frac{ - 5}{2}x + m$

To find out what m is just pick one point and insert it into the equation. So if I pick (0,-5). 0=X therefore it should be replaced by x and -5=y therefore it should also be replaced by y.

$- 5 = \frac{ - 5}{2} \times 0 + m$

m=-5

Try it with another point to see if you get the same answer. this time I'll pick (-6,10)

$10= \frac{ - 5}{2} \times( - 6)+ m$

m= -5

The equation will be y=-5/2x-5)

8 0

3 years ago