Question

In order to keep the ship safe, you need to think ahead of the enemy. They have sent you a number, added 0.5 to that number and then multiplied the new result by 4. They then subtract 2 and divide the number by 2. The final answer is 48. What number did they send you?

Answer 1

Respuesta:

24

Explicación paso a paso:

The equation is posed as values are indicated.

{[(x + 0,5) x 4] – 2} ÷ 2 = 48

It is cleared as follows:

{[(x + 0,5) x 4] – 2} = 48 x 2

{[(x + 0,5) x 4] – 2} = 96

[(x + 0,5) x 4] = 96 + 2

[(x + 0,5) x 4] = 98

[(x + 0,5)] = 98 ÷ 4

x + 0,5 = 24,5

x = 24,5 – 0,5 = 24

X = 24

Answer 2

The number that they sent  is : x = 24 .

  The number that they sent is calculated through the approach and solution of a first degree equation, whose incognita is the number x, as follows:

  [4*( x +0.5 ) -2 ]/2 = 48

    4*( x +0.5) - 2 = 96

         4*( x +0.5)  = 98

              x +0.5 = 98/4

              x + 0.5 = 24.5

                       x = 24.5 - 0.5

                       x = 24

  The solution of an equation is the value of the incognite (x) that meets equality.

  To consult you can do it here:https://brainly.lat/tarea/9004515