How can I solve the following equation. in any method of 20h=640​

h=32

Step-by-step explanation:

you have to isolate the h to one side by dividing 640 by 20

h=640/20

h=32

the function makes a strait line horizontally with no x intercept but a y intercept at 9.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m