Chapter 6.2, Problem 55HP

To determine

Describe the method of two answer of estimation.

Answer to Problem 55HP

The tip of the amount and the total amount to pay at the resturant are $\$29and\$220$

Explanation of Solution

Given:

It is given in the question that the one find $240$ for $62\%of403$ and $250$ for the second method.

Calculation: Here, Round off the number $62\%$ which is nearly comes to $60\%$ and $403$ is nearly comes to $400$ .

  $\begin{array}{l}60\%of400\\ 60\%=\frac{60}{100}\\ =\frac{60}{100}\times 400\\ =240\end{array}$

And the second one will be of

  $\begin{array}{l}62\%of403\\ 62\%=\frac{62}{100}\\ =\frac{62}{100}\times 403\\ =249.86\\ \approx 250\end{array}$