Question

A bookstores having a 30% off sale Diary of a Wimpy Kid books are now $6.36 each what is the original price of the book

Answer 1

The "Just shout whenever and I'll be there" theorem can be applied which says that


`\textit{The answer to the question ``A bookstore is having a 30\% off sale for} \\ \textit{Diary of a Wimpy Kid books. If the books are now \$6.36 each, } \\ \textit{what is the original price of the book?`

Proof:


`\displaystyle\sum_(i = 1)^(636)(0.01) = \displaystyle\sum_(i = 1)^(x)(0.01) \cdot (1 - 0.30) \\ \\ \\ = \displaystyle\sum_(i = 1)^(x)(0.01) = (\displaystyle\sum_(i = 1)^(636)(0.01))/(1-0.30) \\ \\ \\ = \sum_(i = 1)^(x)(0.01) = 9.09`

So x must be 909 cents. Therefore, it is $9.09.

I love you too.

Answer 2

Answer: $9.09


Step-by-step explanation:

100% - 30% = 70


`\textnormal {Original Price} = \cfrac{6.36}{70} * 100 = \$9.09`



The Wise Orange loves to read Diary of a Wimpy Kid. Which store is having that 30% discount?