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On the number line, a slow bug S and a fast bug F are moving in the positive direction from the point 0. The speeds of both bugs are constant. Both leave 0 at the same time, and four seconds later F has reached 12 and S has reached 8.

30 seconds after leaving point 0, how far apart are F and S ?
---------- units

When will F and S be 100 units apart?
----------- seconds

Please,please help!!!!!!!! Please don't write a whole bunch of nonsense for the points and please answer all the questions!!!!!!!!!!! I beg!!!!!!!!!!!!!

Respuesta :

sqdancefan
a) Their difference in speed is 12 - 8 = 4 units in 4 seconds, or 1 unit per second. After 30 seconds, the bugs will be 30 units apart.

b) The bugs will be 100 units apart after 100 seconds.

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