On one day in an ice cream store, 48% of the cones they sell are chocolate. What is 48% written as a decimal?

48% written as a decimal is 0.48.

Step-by-step explanation:

Conversion of a percentage to decimal:

To realize the conversion of a percentage to decial, we must divide the percentage by 100.

For example, 20% as a decimal is 20/100 = 0.1.

So

What is 48% written as a decimal?

Dividing by 100

48/100 = 0.48

48% written as a decimal is 0.48.

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.