What is the answer to 9/u = 13/3 ?

The answer to 9/u = 13/3 is u= 27/13

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9/u = 13/3

\frac{9}{u} = \frac{13}{3}

u = \frac{27}{13}

Decimal Notation

u = 2.07692 \dots

Solution steps

\frac{9}{u} = \frac{13}{3}

Cross multiply

27 = u \cdot 13

Switch sides

u \cdot 13 = 27

Divide both sides by

13

u = \frac{27}{13}

Verify Solutions

Find undefined (singularity) points:

u = 0

Combine undefined points with solutions:

u = \frac{27}{13}

150 = \frac{180 ( n - 2 )}{n}

120 = \frac{298}{x ^{2}} - 25.7

\frac{4 x ^{3} - 1}{2 x ^{2} + x - 1} = 0

3 + (\frac{1}{x} - 2) = 30

0.1 = 1 - (1 - \frac{1}{x})^{25}