Question

A while back, Mandy paid a car insurance premium of $5,940 per year. Now she pays 5% less. What does Mandy pay now?

Answer 1

$ 5643

Explanation

to solve this we can use a rule of three

so

Step 1

a) set the proportion

Let x represents the price Mandy pays now

so

$\begin{gathered} if \\ 100\text{ \%}\Rightarrow5940 \\ (100-5)\text{ \% }\Rightarrow x,so \\ 95\text{ \%}\Rightarrow x \end{gathered}$

som the proportion is

$\frac{5940}{100}=\frac{x}{95}$

b) solve for x

to do that, multiply both sides by 95

$\begin{gathered} \frac{5940}{100}*95=\frac{x}{95}*95 \\ 5643=x \end{gathered}$

so, Mandy pays $ 5643 now

I hope this helps you