1.what is -20 divided by 4/5 a.-25 b.-16 c.-1/10 d.-1/25 2.what is -5/8 divided by 9/10 a.-25/36 b.-9/10 c.-35/80 d.-1/36 4. what is -3/4 divided by 1 1/2=

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.

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)