What’s this question

1 answer:

8 0

Multiply the first equation by -1

-3x-y=-4

2x+y=5

Add them up

-x=1

So x=-1

And y=7

So the first option is correct

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marissa [1.9K]

$z=\dfrac{kx^3}{y^3}\\\\\\59=\dfrac{k\cdot 8^3}{8^3}\\k=59\\\\\\z=\dfrac{59x^3}{y^3}\\\\\\z=\dfrac{59\cdot 3^3}{4^3}=\dfrac{1593}{64}$

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horrorfan [7]

It is 77.5. Using a calculator is more useful. ☺

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mote1985 [20]

4(r)^x=y
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Leviafan [203]

Answer:

Bro look it up

Step-by-step explanation:

On google

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valentina_108 [34]

No idea hope you figure it out tho !!
maybe 3?

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