A system of equations is shown below.
2 answers:
<h3>Answer: Choice C</h3>
No solutions if k is anything but 21
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Explanation:
Let's multiply everything in the first equation by 3
3x-2y = 7
3*(3x-2y) = 3*7
9x - 6y = 21
We have the 9x-6y match perfectly with the left hand side of the second original equation.
If k = 21, then we have two identical equations that produce infinitely many solutions.
If , then this system is inconsistent and has no solutions.
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Answer:
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Step-by-step explanation:
Let
x ----> the number of years since 2008,
g(x) ----> the percent of people 25 years and older who have completed at least high school
we know that
so
For x=15 years since 2008
substitute
That means
In the year 2023 (2008+15) the percent of people 25 and older completing at least high school will be 93.8%