100 points!! Do not steal the points otherwise I will report! The sum of three numbers is 254.772. We can get the biggest and smallest numbers if we move the decimal point in the middle number two digits to the right and one digit to the left, respectively. What is the middle number?

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Middle Number = -25247.9052

Step-by-step explanation:

Sum of numbers = 254.772

Biggest Number = Moving the decimal point two digits to the right = 25477.2

Smallest Number = Moving the decimal point two digits to the left = 25.4772

Middle Number = ?

Biggest Number  + Middle Number + Smallest Number= 254.772

25477.2 + Middle Number + 25.4772 = 254.772

Middle Number = 254.772 - 25477.2 -  25.4772

Middle Number = -25247.9052

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.

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24