The tens digit of a two-digit number is twice the unit digit. if the digits are reversed, the new number is 36 less than the original number. find the number

The original number is 84.

Step-by-step explanation:

Let the number be xy.

Then x = 2y.

The numerical value of xy is 10x + y,

so 10y + x = 10x + y - 36.

9y - 9x = -36

y - x = -4

Substitute for x in the above equation:

y - 2y = -4

-y= -4

So y = 4

and x = 2y = 8.

The number is 84

Step-by-step explanation:

x = unit digit      

10(2 x) + x = 10 x+ 2 x + 36

      9 x = 36

         x = 4       (4 is the unit digit,which is half of the tens digit,so the tens digit is 8)

Number is 84

The reverse of 84 is 48  

48 is 36 less than 84

 84 = 48 + 36

the mean and mad

step-by-step explanation:

d 25 pi/6

step-by-step explanation:

the diameter is 10 inches

the radius is 1/2 of the diameter or 5 inches

the area of the circle is

a = pi r^2

  = pi 5^2

  = 25 pi

the slice is 60 degrees of the entire circle.

60 degrees out of 360   60/360 = 1/6

the area of the slice is 1/6 of the circle

a slice = 1/6 a circle

a slice = 1/6 * 25 pi