Question

The original price of a birthday cake is $15. Which coupon is a better deal? Take $5 Off (One purchase of $10 or more)or40% off any purchase

Answer 1

Step-by-step explanation

Given information

The original price of the cake is $15

To determine a better deal, follow the steps below

The first coupon; Take $5 off on every purchase of $10 or more)

This implies that if your purchase is more than $10, then, subtract $5

Hence, the amount he will pay is calculated below

`\begin{gathered} \text{ The original price of the birthday cake is \$15} \\ \text{ The amount after applying the coupon = \lparen15 - 5\rparen} \\ \text{ The amount after applying the coupon is \$10} \end{gathered}`

The second coupon

40% off of any purchase

This implies that there is a 40% discount on any the purchase

`\begin{gathered} \text{ The new price = \lparen100 - 40\rparen\% }*15 \\ \text{ The new price = \lbrack60\%\rparen }*\text{ 15} \\ \text{ The new price=}(60)/(100)\text{ x 15} \\ \text{ The new price = 0.6 x 1.5} \\ \text{ The new price is \$9} \end{gathered}`

From the above calculation; the second part has the best deal because you will be paying less of the origin