Question

Twice a number is one

Answer 1

would the answers be 0.5? i'm not sure but i tried. have a great day.

cuz half (x2) of a number (x) is (=) one..

2x=1

0.5=x

0.5x2=1

Answer 2

For this case we must propose a linear equation.

Let "x" be the variable that represents the unknown number.

So, we have:

`2x`: Represents twice the number

`2x = 1`: Represents that twice the number is equal to one.

We clear the value of "x":

We divide between "2" on both sides of the equation:

`\frac {2x} {2} = \frac {1} {2}\\x = \frac {1} {2}`

Answer:

`x = \frac {1} {2}`