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The distance, d, an object travels is represented by the equation d = rt, where r represents the average rate of speed and t represents time. Determine the units of t if d is measured in feet and r is measured in feet per second.

A.
square feet

B.
seconds

C.
feet per second

D.
feet per second squared

The distance d an object travels is represented by the equation d rt where r represents the average rate of speed and t represents time Determine the units of t class=

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Answer:

B. seconds

Step-by-step explanation:

We have d=rt

means that t= [tex]\frac{d}{r}[/tex]

Given the units of each:

d: feet

r: feet/second

Replace each with its unit:

 t=    [tex]\frac{feet}{\frac{feet}{second} }[/tex]   =  [tex]\frac{feet.second}{feet}[/tex]  = second

So the unit of t is seconds (option B.)

Answer:

  • B. seconds

Step-by-step explanation:

Given

  • d = rt
  • unit of d = feet
  • unit of r = feet per second

To Find :

  • unit of t

Solving :

  • Since d = rt, we can rearrange it and rewrite it as t = d/r
  • Now substitute the units in place of d and r
  • t = d/r
  • t = feet/feet per second
  • t = (feet)/(feet)(second)⁻¹
  • t = seconds

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