What is the answer to 350/250 = 1/(1-D) ?

The answer to 350/250 = 1/(1-D) is D= 2/7

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350/250 = 1/(1-D)

\frac{350}{250} = \frac{1}{1 - D}

D = \frac{2}{7}

Decimal Notation

D = 0.28571 \dots

Solution steps

\frac{350}{250} = \frac{1}{1 - D}

Cross multiply

350 (1 - D) = 250

Divide both sides by

350

1 - D = \frac{5}{7}

Move

1

to the right side

- D = - \frac{2}{7}

Divide both sides by

- 1

D = \frac{2}{7}

Verify Solutions

Find undefined (singularity) points:

D = 1

Combine undefined points with solutions:

D = \frac{2}{7}

\frac{4}{5 x} = 3

\frac{7}{2 z + 5} = \frac{3}{z}

75 = \frac{19600}{x} \cdot 100

\frac{x - 1}{2 x + 5} = \frac{7}{5}

- \frac{5}{9} = \frac{16}{x}

What is the answer to 350/250 = 1/(1-D) ?
The answer to 350/250 = 1/(1-D) is D= 2/7
Solve for D: 350/250 = 1/(1-D)
The solution is D= 2/7