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ICE Princess25 [194]
3 years ago
8

What is the solution of the system of equations c+3d=8 and c=4d-6? Show work plz.

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
6 0
\left\{\begin{array}{ccc}c+3d=8\\c=4d-6\end{array}\right\\\\substitute:\\\\(4d-6)+3d=8\\4d+3d-6=8\ \ \ \ /+6\\7d=14\ \ \ \ /:7\\d=2\\\\c=4\cdot2-6=8-6=2\\\\\left\{\begin{array}{ccc}c=2\\d=2\end{array}\right
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rodikova [14]

We can set up this equation using this formula:

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We'd set it up like this:

a = 50(1 + ?/1)^1(12)

Because we're missing the amount of interest, it would be impossible to tell what the amount would be after 12 years.


6 0
3 years ago
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astra-53 [7]

Answer:

10

Step-by-step explanation:

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2 years ago
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mixas84 [53]

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c^2=4\\\\\sqrt{c^2}=\sqrt{4}\\\\ \boxed{c=2; c=-2}

Hope this helps.

7 0
3 years ago
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musickatia [10]

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3 years ago
What is 11 feet and 8 inches plus 2 feet and 9 inches
Agata [3.3K]

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