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- t:0.001
- v:x
- r:$rate1:10*random+60
- r:$distance:100*random+500
- q:Two trains at the station depart in opposite directions. One train travels
- q:at $rate1 miles/hour and the other at x miles/hour. Give an expression
- q:(in x) for the time at which they will be $distance miles apart?
- a:$distance / ($rate1 + x)
- e1:1
- e21:After one hour they will still be $rate1 + $rate2 miles apart.
- e1:$distance / ($rate1 - x)
- e21:Perhaps you made a sign error.
- e22:Remember that the distance between the trains is always increasing.
- e23:Line 3
- e24:Line 4
- e25:Line 5
- e26:line 6
- e27:line 7
- e28:line 8
- e29:line 9
- h:Each hour they will travel $rate1 + $rate2 miles further apart.
- End of question
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