You just finish the equation by adding 19 to 42 which is 61.
Answer: average speed is 8 km/h
Step-by-step explanation: in upstream his speed is 9 km/h -3km/h.
So his speed is 6km/h and he needs time t= s/v= 1.5 km: 6 km/h = 0.25 h
Downstream his speed is 9 km/ + 3km/h = 12km/h and time is
1.5 km:12km/h= 1/8 hours= 0.125 h
Average speed v = s/t = 3km: (0.25 + 0.125 ) h = 8 km/h
Answer:
First solve 225/10=22.5 and use that answer to solve for x=414/22.5
your answer is 18.4
Step-by-step explanation:
Answer:
'x' and 'y' have a positive association between them.
Step-by-step explanation:
We can see in the given data that as 'x' remains constant or increases by 1 unit, or two units in it's two consecutive values, in each of the cases 'y' increases by 1 unit.
Hence, 'x' and 'y' have a positive association between them.
