When a number is increased by 9%, the result is 99. what is the original number to the nearest tenth?

The original number is 90.8

Step-by-step explanation:

we know that

Let

x -----> the original number

The original number multiplied by 1.09 must be equal to 99

so

Solve the linear equation for x

Divide by 1.09 both sides

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

answer: procent 54 wynosi 33,33%