geno3141

There are 366 days in a leap year and there are 12 months.

To find a mean, find the total number (366) and divide by the number of numbers (12):

366 ÷ 12  =  30.5   <--- mean number of days in a month in a leap year

Start by dividing out a 2:  7020  =  2 x 3510

Since the answer is even, divide out another 2:  7020  =  2 x 2 x 1755

Since the sum of the digits of 1755 is 1 + 7 + 5 + 5 = 18 is divisible by 3, so is 1755:

    7020  =  2 x 2 x 3 x 585

Since the sum of the digits of 585 is 5 + 8 + 5 = 18 is divisible by 3, so is 585:

    7020  =  2 x 2 x 3 x 3 x 195

Since the sum of the digits of 195 is 1 + 9 + 5 = 15 is divisible by 3, so is 195:

    7020  =  2 x 2 x 3 x 3 x 65

65 is not divisiible by 3, but it is divisible by 5:

    7020  =  2 x 2 x 3 x 3 x 3 x 5 x 13  

If you go 25 miles in 1/2 hour then, at that rate, you will go 50 miles in 1 hour.

Your rate is:  50 miles per hour

Do you want a decimal approximation? If so, use the calculator at this site; if not, what do you want?

In simplest radical form:  √18  =  √9·√2  =  3√2

(Factor out the largest perfect square.)

Can you make the question more specific?

Why is life so life-y?

Why is earth so earth-y?

Why are trees so trees-y?

Ah, the sweet mysteries of life ...

Could you give an example of this type of problem?

-2x + 6 - 5x  =  62

Combine the -2x and the -5x to get -7x:

    6 - 7x  =  62

Subtract 6 from both sides:

       - 7x  =  56

Divide both sides by -7:

           x  =  -8

y^0.5  =  y^(1/2)  =  √y

    2  =  √y

To solve, square both sides:

    4  =  y