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3 years ago

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jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equa

tion to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

1 answer:

morpeh [17]3 years ago

5 0

He is correct. since it is double the amount of B, he can do Bx2, or b+b

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Answer:

The solution is (-2,-11)

Step-by-step explanation:

The given system is

$-5x+y=-1$

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Make y the subject in the first equation to get;

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Put $y=5x-1$ into the second equation.

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