The table shows a proportional relationship between the number of movies downloaded and the download time (in hours). Find the constant of proportionality in terms of movies downloaded per hour. Number of Movies
2
4
5
7
Download Time (hours)
1
2
2.5
3.5
A. 
2
B. 
4
C. 
6
D. 
8
E. 
10

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

answer: your correct answer is b. d.

step-by-step explanation:

a

step-by-step explanation:

step by step explanation: when u removing the parentheses and combined them that would be : x+3y-x-y=2y