alex has a 30ft head start it takes 199ft to get to the other side alex gets to move 2ft every minute Alissa moves 3ft every 2 minutes when is alissa going to pass alex
+36916 Never ! Not ONLY did Alex get a head start....he is moving faster @ 2 ft/min and Alissa is only going 1.5 ft/min.
If you mean they start on opposite sides then that is something else....but that is not what is written. o/w 48.28 minutes
199-(2t+30) = 1.5t
169 = 3.5t t = 48.28 minutes they will pass each other if going in opposite directions.
+36916 Never ! Not ONLY did Alex get a head start....he is moving faster @ 2 ft/min and Alissa is only going 1.5 ft/min.
If you mean they start on opposite sides then that is something else....but that is not what is written. o/w 48.28 minutes
199-(2t+30) = 1.5t
169 = 3.5t t = 48.28 minutes they will pass each other if going in opposite directions.
+128599 Alissa will never pass him....if she moves 3ft every 2 minutes.......[assuming the rate is constant]....then she only moves 1.5 ft every minute.......and alex is already traveling faster than that [ 2 ft per minute ]
+128599 Just to make the problem interesting.....let's assume that they start from opposite sides......If Alex has a 30 ft head-start.........the distance between them is only [199-30] ft = 169ft
So........in one minute.......they close this distance by [ 2 + 1.5] ft = [3.5] ft
So.......the amout of time it will take them to meet = D/R = T = 169/3.5 = about 48 +2/7 minutes = about 48 minutes 17 seconds......so, Alissa passes Alex after this............
