Question

house construction in the historic district
poured
concrete
field stone &
mortar
combination
total
historically - protected
0
205
non - historically -
protected
18
134
total
203
339
the houses in the \historic district\ of a particular town are either
historically protected or not. the table partially represents these homes
and whether they have foundations made from poured concrete, mortar
and field stone, or a combination of both. if only 4.5% of the non -
historically - protected homes have a field stone and mortar foundation,
how many homes is this?
(round to the nearest whole number.)

Explanation:

Step1: Find the number of non - historically - protected homes

The total number of non - historically - protected homes is \(134\).

Step2: Calculate \(4.5\%\) of the non - historically - protected homes

We know that to find a percentage \(p\%\) of a number \(N\), we use the formula \(N\times\frac{p}{100}\). Here, \(N = 134\) and \(p=4.5\). So the number of non - historically - protected homes with a field stone and mortar foundation is \(134\times\frac{4.5}{100}\).

$$134\times\frac{4.5}{100}=\frac{134\times4.5}{100}=\frac{603}{100}=6.03$$

Answer:

\(6\)