8
algebra

Solve for tt: D=rtD = rt

A

t = D - r

B

t = r / D

C

t = D / r

D

t = Dr

Correct Answer: C

Choice Choice C is the correct answer.

  1. Start: D=rtD = rt
  2. Divide by r: t=Drt = \frac{D}{r}

Choice Choice B is incorrect because inverted.

Choice Choice B is incorrect because subtracted.

Choice Choice D is incorrect because multiplied.