Question

Naomi bought a dress on sale for $24.Naomi bought the dress for 60% of the original price.Which equation shows how to find the original cost of the dress?

Answer 1

Let

the original price = a

60% of the original price can be expressed as follows

`\begin{gathered} (60)/(100)* a=24 \\ (3)/(5)a=24 \\ \text{cross multiply} \\ 3a=24*5 \\ 3a=120 \\ \text{divide both sides by 3} \\ a=(120)/(3) \\ a=40 \end{gathered}`

The original cost of the dress is $40. The equation can be represented as follows

0.6a = 24