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Korolek [52]
3 years ago
9

Which equation shows how (–10, 8) can be used to write the equation of this line in point-slope form?

Mathematics
1 answer:
alex41 [277]3 years ago
3 0

If you plug in the # the only one that is correct is y-8=-0.2(x+10)

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The sum of two numbers is 9 . one number is nine less than twice the other. find the two numbers.
dimulka [17.4K]
Hello!

To solve this problem, we will use a system of equations. We will have one number be x and the other y. We will use substitutions to solve for each variable.

x+y=9
x=2y-9

To solve for the two numbers, we need to solve the top equation. The second equation shows that x=2y-9. In the first equation, we can replace 2y-9 for x and solve.

2y-9+y=9
3y-9=9
3y=18
y=6

We now know the value of y. Now we need to find x. We can plug in 6 for y in the second equation to find x.

x=2·6-9
x=12-9
x=3

Just to check, we will plug these two numbers into the first equation.


3+6=9
9=9

Our two numbers are three and six.

I hope this helps!
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Answer:

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Step-by-step explanation:

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Answer: 10(6 - x) or 10(x - 6)

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