Evaluate the expression when a=4, b=15, and c= 16. 20 ÷ a

16

5

7

6

5

Step-by-step explanation:

20 / a

20 / 4

5

5

Step-by-step explanation:

20 ÷ a

20 ÷ 4 = 5

Hope this helps!

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.

k

step-by-step explanation:

domit