Question

You make homemade lip balm, about $11\%$ of the lip balm is made from beeswax.

You make $4\frac{2}{5}$ teaspoons of the lip balm.

About how many teaspoons of beeswax do you need?

Round your answer to the nearest ${10}^{th}$.

Answer 1

Step-1: Finding the amount of lip balm:

It is known that, $a\frac{b}{c}=a+\frac{b}{c}$.

Put the value of $a=4,b=2,c=5$ in the above formula:

$\begin{array}{rcl}4\frac{2}{5}& =& 4+\frac{2}{5}\\ & =& 4+0.4\\ & =& 4.4\end{array}$

Step-2: Find the amount of beeswax in the lip balm:

Since $11\%$ of lip balm is made of beeswax.

The amount of beeswax in lip balm can be calculated as,

$\begin{array}{rcl}4.4\times 11\%& =& 4.4\times \frac{11}{100}\\ & =& 4.4\times 0.11\\ & =& 0.484\\ & \approx & 0.5\end{array}$

Hence, $0.5$teaspoons of beeswax are required.