Chapter 7.5, Problem 26E

To determine

To find the number of people accessed streaming media in November $1999$ between the age of $2$ and $18$ .

Answer to Problem 26E

The total number of people who accessed streaming media in November $1999$ between the age of $2$ and $18$ is about $4.24$ millions.

Explanation of Solution

Given information:

The percent of increase is $65\%$ ,

The new amount of people accessed streaming media in November $2000$ between the age of $2$ and $18$ after the increase in percent is about $7$ millions.

Formula used:

For a $p\%$ increase, multiply the original amount by $\left(100\%+p\%\right)$ than,

  $\text{New amount}=\text{Original amount}\times \left(100\%+p\%\right)$ .

Calculation:

Taking number of people accessed streaming media in $1999$ between the age of $2$ and $18$ as

Original amount the problem can be simplified as:

  $\begin{array}{l}\text{New amount}=\text{Original amount}\times \left(100\%+p\%\right)\\ 7000000=\text{Original amount}\times \left(100\%+65\%\right)\left[\text{Substitute}\right]\\ 7000000=\text{Original amount}\times 1.65\left[\text{Add and write percent as a decimal}\right]\\ \text{4242424}\text{.}\overline{24}=\text{Original amount }\left[\text{Divide both side by 1}\text{.65 and Evaluate}\text{.}\right]\\ 4.24\text{ millions}\simeq \text{Original amount}\text{.}\end{array}$

Hence,

The total number of people who accessed streaming media in November $1999$ between the age of $2$ and $18$ is about $4.24$ millions.