Two bicyclists start from a starting line at the same time. Their speeds and distances traveled (from their initial position) are shown at the intial time, after one second and after two seconds. Use inquiry to answer the questions assuming the both bicyclists continue to
ride with the same motion.

The independent variable would be the fertilizer as it is what the dependent variable (the growth of grass) depends on.

Answersystem;

Distance covered = speed x timethe distance traveled going against the stream = distance traveled with the stream.therefore it is the speed and the time that are the variables.as he travels the same distance both ways, speed x time is the same for each way.going upstream his speed is 4 kph; going downstream his speed is 6 kph.therefore we have two simultaneous equations: time upstream x 4 = time downstream x 6time upstream + time downstream = 60 minutestherefore we have the equation: time upstream = 6/10 hour, time downstream therefore = 4/10 hour.distance traveled at 4km/hr in 6/10 hour = 24/10 = 2.4km.check: distance traveled at 6km/hr in 4/10 hour = 24/10 = 2.4km.