A bus is traveling at a constant speed along a straight portion of road. The equation d = 30 t

Question

A bus is traveling at a constant speed along a straight portion of road. The equation $d equals 30 t$ gives the distance $d$ , in feet from a road marker, that the bus will be $t$ seconds after passing the marker. How many feet from the marker will the bus be $2$ seconds after passing the marker?

A.

$30$

B.

$32$

C.

$60$

D.

$90$

Accepted Answer

Choice C is correct. It&rsquo;s given that t represents the number of seconds after the bus passes the marker. Substituting 2 for t in the given equation d = 30 t yields d = 30 2 , or d = 60 . Therefore, the bus will be 60 feet from the marker 2 seconds after passing it. Choice A is incorrect. This is the distance, in feet, the bus will be from the marker 1 second, not 2 seconds, after passing it. Choice B is incorrect and may result from conceptual or calculation errors. Choice D is incorrect. This is the distance, in feet, the bus will be from the marker 3 seconds, not 2 seconds, after passing it.

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