Chapter 7.3, Problem 11E

To determine

To describe and correct the error in writing a number as a percent.

Answer to Problem 11E

The correct way of writing $1.5$ as a percent is $150\%$

Explanation of Solution

Given information:

The decimal written as a percentage is

  $\begin{array}{l}1.5=01.5\\ 1.5=0.015\%\end{array}$

In the conversion shown, the decimal point is moving two places to the left, which is wrong.

In writing a decimal as a percentage, the decimal point moves two places to the right.

The correct way of writing $1.5$ as a percent is shown below:

  $1.5=150\%\left[\text{decimal point moves two places to the right}\right]$

Hence, the correct way of writing $1.5$ as a percent is $150\%$