Question

Mr. and Mrs. Ferguson are planning a vacation to celebrate their anniversary.

Answer 1

First, let's calculate the actual cost.
$239*6=1434$ is the actual cost of six nights.
The formula for percent error is $|\frac{measured value-accepted value}{accepted value}|*100$
The bars (|) stand for absolute value which gets rid of the negative sign if there is one.
Plug in the values: $|\frac{1434-1450}{1450}|*100$
$|\frac{-16}{1450}|*100$
$|-0.0110344828|*100$
$0.0110344828*100$
$1.10344828%$ is the percent error.