Three more than the quotient of a number and 2 is equal to 9.

4 is the quotient.

3 more than the quotient is 7 because 4+3=7.

Also to check 9-2=7.

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

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.