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3 years ago

I answered the question 3x-y=5 but is there a different way to answer this?

Mathematics

2 answers:

Svetach [21]3 years ago

7 0

Answer and Step-by-step explanation:

Yes (technically), there is a different way to answer the equation 3x - y = 5. But, the first part of how you described it is a bit off.

Here is how you would explain it:

What you would do is Add y to both sides, then subtract 5 from both sides.

3x = y + 5

3x - 5 = y (aka y = 3x - 5)

The other way to solve:

3x - y = 5

Subtract 3x from both sides.

-y = -3x + 5

Now divide both sides by -1.

-1(-y) = -1(-3x + 5)

y = 3x - 5

If you want to solve for x, you would:

Add y to both sides of the equation.

3x = 5 + y

Then divide each side by 3.

x = $\frac{1}{3}y$ + $\frac{5}{3}$

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

Svet_ta [14]3 years ago

3 0

Step-by-step explanation:

Hi,

I agree with what you did. You could also add y on both sides and get 3x = y + 5 and then divided by three to get...

x = 5 + y /3

(the 5 and y are being divided by 3)

But that's just complicated, it works, but it's complicated. What you did is correct and what I gave you is the value of x, but I'm 100 percent sure yours is correct.

Hope this helps

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3 years ago

Juan wants to change the shape of his vegetable garden from a square to a rectangle, but keep the same area so he can grow the s

irina [24]

The value of x that makes sense in this context is; 32.

The dimensions of the new garden is; 64 by 16.

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The expression that represents the problem statement is;

x² = (2x)(x – 16)

Expanding the bracket gives us;

x² = 2x² – 32x

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Thus; x = 0 or x = 32

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Thus;

The length of the new garden is; l = 2x = 64.

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2 years ago

What point would A' be after a dilation with a scale factor of 2 centered at (-7,-2)?

musickatia [10]

Answer:

(-14,-4)

Step-by-step explanation:

Given the pre-image A=(-7,-2)

If A is dilated with a scale factor of 2

Then the image of A,

A' = (-7,-2) X 2

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