2 years ago

The PS4 cost $650 when it first came out. Two years later it was only worth $250. By what percentage did the price decrease?

Mathematics

1 answer:

Alex777 [14]2 years ago

8 0

Answer:

It decreased by 61.5%

Step-by-step explanation:

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Y = –3x 6 y = 9 what is the solution to the system of equations? (–21, 9) (9, –21) (–1, 9) (9, –1)

Romashka [77]

we have

<u>The system of equations</u>

$y=-3x+6$ -------> equation $1$

$y=9$ -------> equation $2$

Substitute equation $2$ in equation $1$

$9=-3x+6$

subtract $6$ both sides

$9-6=-3x+6-6$

$3=-3x$

Divide by $-3$ both sides

$x=-1$

the solution is the point $(-1,9)$

therefore

the answer is

the solution to the system of equations is the point $(-1,9)$

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Step-by-step explanation:

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Look down below for the answer :))

Step-by-step explanation:

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