3 years ago

What is the answer to 9+3/4x=7/8x-10

Mathematics

1 answer:

kolezko [41]3 years ago

4 0

$9+ \frac{3}{4} x = \frac{7}{8} x-10 \ \ \ \ \ /\cdot8 \\ 72+6x=7x-80 \\ -x=-152 \\ x=152$

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13 is the answer.

Explanation:
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3 years ago

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Salsk061 [2.6K]

Answer:

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Step-by-step explanation:

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This means that X(0) = 160.

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$X(t) = 160(1-r)^{t}$

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$X(t) = 160(0.9438)^{t}$

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This is t for which X(t) = 2. So

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$2 = 160(0.9438)^{t}$

$(0.9438)^{t} = \frac{2}{160}$

$\log{(0.9438)^{t}} = \log{\frac{2}{160}}$

$t\log{0.9438} = \log{\frac{2}{160}}$

$t = \frac{\log{\frac{2}{160}}}{\log{0.9438}}$

$t = 75.8$

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