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3 years ago

Solve this problem I'm confused 3y-9x=27

2 answers:

6 0

$- 9x + 3y - 27 = 0 \\ a = - 9 \\ b = 3 \\ c = 0 \\ {b}^{2} - 4ac = 9 - 4( - 9)( - 27) = 0 \\ x = \frac{ - b}{2a} = \frac{ - 3}{ - 18} = \frac{1}{6} \\ x = \frac{1}{6} \\ y = ( - 9 \times \frac{1}{6} ) + 3y = 27 \\ \frac{ - 3}{2} + 3y = 27 \\ 3y = 27 + \frac{3}{2 } \\ 3y = \frac{57}{2} \\ y = \frac{57}{6} = \frac{19}{2} \\$

i hope it helps u.....

Harrizon [31]3 years ago

5 0

You’re supposed to graph the function. So basically you’ll want to make it so that y=, and then the rest of your formula.

So in this case y=3x+9

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As we know that there are 365 days in a year, therefore, n = 365, substitute the values,

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As we know that the interest is charged Quarterly, therefore, n = 4, substitute the values,

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Learn more about Compound Interest:

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