Question

The book “wrinkle in time” costs $8.05. Of it was increased by 10% what would be the new price?

Answer 1

Answer: $\ 8.855$

Step-by-step explanation:

The former cost of the book is $\ 8.05$

The new cost of the book is the old cost plus the $10\%$ of $\ 8.05$:

$\ 8.05+\ 8.05(10\%)$

Since:

$10\%=\frac{10}{100}=0.1$

We have the following:

$\ 8.05+\ 8.05(0.1)=\ 8.05+\ 0.805$

Then, the new price of the book is:

$\ 8.855$