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Anastasy [175]
3 years ago
9

What is the value of x in the equation 1/5x - 2/3y = 30, when y = 15?

Mathematics
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

x = (-150)/49

Step-by-step explanation:

Solve for x:

49 x + 150 = 0

Hint: | Isolate terms with x to the left hand side.

Subtract 150 from both sides:

49 x + (150 - 150) = -150

Hint: | Look for the difference of two identical terms.

150 - 150 = 0:

49 x = -150

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 49 x = -150 by 49:

(49 x)/49 = (-150)/49

Hint: | Any nonzero number divided by itself is one.

49/49 = 1:

Answer: x = (-150)/49

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Answer:

Check attachment for orderliness of question

Step-by-step explanation:

We want to the equation in an exact form

M(x, y) dx + N(x, y) dy = 0.

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Cross multiply

Then,

xy²dy=(y³-x³)dx

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Therefore,

(x³-y³)dx + xy²dy=0

Can only be an exact equation if and only if

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From the equation

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Also, N=xy²

dN/dx=y²

Since dM/dy ≠ dN/dx

Then it is not an examct equation and we can say

M≠(x³-y³)

And

N≠(xy²)

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What is 251,031 rounded to the nearest thousand
Sloan [31]
The answer is <span>251,000</span><span />
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Hello!

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Step-by-step explanation:

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