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labwork [276]
3 years ago
11

SADFHUABSUDHAYSDXNINWYGBXIDNYW PLEASE ANSEWR

Mathematics
2 answers:
Alenkinab [10]3 years ago
5 0

Answer:

15x-6y=48

Step-by-step explanation:

So we have the system of equations:

5x-2y=16\\15x-7y=51

And we want to multiply the first equation by some constant such that the resulting equation matches the coefficient of [x] in the second equation.

We can see that the coefficient of x in the second equation is 15.

So, to match 15, we must multiply the first equation by 3. So:

3(5x-2y)=3(16)

Multiply:

15x-6y=48

And we're done!

user100 [1]3 years ago
3 0

Answer:

Step-by-step explanation:

-15x + 6y = -48

15x - 7x = 51

-x = 3

x = -3

5(-3) - 2y = 16

-15 - 2y = 16

-2y = 31

y = -15.5

(-3, -15.5)

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Anuta_ua [19.1K]

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Step-by-step explanation:

By definiton, fractions have the following form:

\frac{a}{b}

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In this case, according to the information given in the exercise, you know that \frac{3}{8}\ lb of rubies are divided into 4 lots.

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