Question

Could you please help me with this? It’s a problem from my grandson’s homework.

Answer 1

SOLUTION

From the question given, the cost of the toy truck is $36.50 before tax.

Now, the store selling the toy truck adds a 6% sales tax. This means

$\begin{gathered} 6\%\times36.50 \\ =\frac{6}{100}\times36.50 \\ =\frac{6\times36.50}{100} \\ =\frac{219}{100} \\ =2.19\text{ dollars} \end{gathered}$

Now, we will add this $2.19 to the initial cost, we have

$2.19+36.50=38.69$

This gives $38.69.

Finally we will do a discount of 10%. 10% discount is

$\begin{gathered} 10\%\times38.69 \\ \frac{10}{100}\times38.69 \\ =\frac{10\times38.69}{100} \\ =\frac{386.9}{100} \\ =3.869 \end{gathered}$

We will then subtract this 3.869 from 38.69, we get

$\begin{gathered} 38.69-3.869 \\ =34.821 \end{gathered}$

That is 34.821. The 1 which is the last number at the decimal part is less than 5, so we ignore it and our answer becomes $34.82