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Dmitry_Shevchenko [17]

3 years ago

15

Solve the system of equations 5x-7y=58 y=-x+2 What is y and x equal to

1 answer:

QveST [7]3 years ago

6 0

Answer:

A) 5x-7y=58

B) y=-x+2 we rearrange B) into

B) x + y = 2 then we multiply B) by -5

B) -5x -5y = -10 adding this to A)

A) 5x -7y = 58 we get

-12y = 48

y = -4

B) x + y = 2

x = 2 +4

x = 6

Step-by-step explanation:

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13x^-5 y^0/5^-3 z^-10

VMariaS [17]

Answer:

$\frac{1625z^{10}}{x^{5}}$

Step-by-step explanation:

We want to simplify:

$\frac{13x^{-5}y^0}{5^{-3}z^{-10}}$

We rewrite as positive index to get:

$\frac{13y^05^{3}z^{10}}{x^{5}}$

This simplifies to

$\frac{13*1*125z^{10}}{x^{5}}$

This will finally give us:

$\frac{1625z^{10}}{x^{5}}$

We cannot simplify further.

Hence the simplest form is $\frac{1625z^{10}}{x^{5}}$

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Step-by-step explanation:

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Carlo buys $14.40 worth of grapefruit. Each grapefruit costs $0.80.<br> how many does he have

gtnhenbr [62]

Answer:

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Step-by-step explanation:

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