Speed decreases as time increases for the same distance true or false

Question

solomonzelman · Answer

by definition, you know that,

$\color{#000000 }{ \displaystyle {\rm speed}=\frac{\rm distance}{\rm time}  }$

If you keep the same distance, and make the time smaller, then you are going to be dividing the distance by a smaller number.

You should know that for any:
divident / divisor = result

if you make the divisor smaller, then the result will be larger.

anonymous · Answer

So your answer would be true

solomonzelman · Answer

note, my statement is precise if the divident, divisor and the result are positive, and that fortunately is by definition true in a context of your problem.

(Speed, time and distance are all scalar positive quantities)

anonymous · Answer

can some one help me
Jill puts her face in front of a convex mirror, 18 cm from the focal point of the mirror. If the focal point is located 12 cm from the mirror, where will her image appear?
  A. 4 cm behind the mirror
  B. 8 cm behind the mirror
  C. 4 cm in front of the mirror
  D. 8 cm in front of the mirror