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3 years ago

15

Is the ordered pair (-2, 9) a solution of the equation y = x – 7?

2 answers:

Eva8 [605]3 years ago

6 0

No because if you plug in the ordered pair you would get 9=-2-7 which equals -9 making -9 and 9 unequal means (-2,9) is not a solution.

Gennadij [26K]3 years ago

6 0

To find if (-2,9) is a solution of the equation y = x - 7, just plug the values back into the original equation. You can get these values by using the coordinate point.
$9 = -2 - 7
$
$9 ≠ -9$
Since the values are not equal, the coordinate point (-2,9) is not a solution of the equation y = x - 7. Hope this helps and have a fabulous day!

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3 years ago

Ramiro buys 50 packs of candy bars for $40 before a tax of 7.5%. He sells each candy var for 175% of what he paid before tax. ho

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Answer:

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Step-by-step explanation:

Given:

Ramiro buys 50 packs of candy bars for $40 before a tax of 7.5%.

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How much does he buy each candy bar for ?

How much does he sell one for ?

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<u>By unitary method:</u>

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