What is the answer to 3/x =0.42 ?

The answer to 3/x =0.42 is x= 50/7

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3/x =0.42

\frac{3}{x} = 0.42

x = \frac{50}{7}

Decimal

x = 7.14285 \dots

Solution steps

\frac{3}{x} = 0.42

Multiply both sides by

x

3 = 0.42 x

Switch sides

0.42 x = 3

Multiply both sides by

100

42 x = 300

Divide both sides by

42

x = \frac{50}{7}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{50}{7}

x - (\frac{1}{x}) = 0

100 = x (\frac{100}{x})

0.36 = \frac{( 2 x ) ^{2}}{0.1 - x}

\frac{5}{x} = 3 - \frac{x}{x - 3}

\frac{5}{3 x} + 3 = 8