Ninety percent of what number is 45?

Answer 1

To find the number for which ninety percent equals 45, you can set up the equation:

\[ 0.9 \times x = 45 \]

where \( x \) is the unknown number. To solve for \( x \), divide both sides of the equation by 0.9:

\[ x = \frac{45}{0.9} \]

Calculating that gives:

\[ x = 50 \]

Therefore, ninety percent of 50 is 45. Thus, the number is 50.