Question

A tennis racket at Sport City costs $180and is discounted 15%. The same modelracket costs $200 at Tennis World and is onsale for 20% off. Which store is offering thebetter deal? Explain.

Answer 1

We can find the discounted price of the tennis racket at Sport City by finding the 100% - 15% = 85% of the total price. We can do this by multiplying the total price by the decimal form of 85%:

`180(85\%)=180(0.85)=153`

then, we have that the price of the racket at Sport City is $153

Doing the same but with the price at Tennis World, we get:

`\begin{gathered} 100\%-20\%=80\% \\ \Rightarrow200(80\%)=200(0.80)=160 \end{gathered}`

since the price of the tennis racket is $160 at Tennis world, we can clearly see that Sport City offers a better deal (since 153 < 160)