Ray is reading a book of 150 pages at a constant rate of 25 pages per hour. Let’s consider the following function: the pages left to read L as a function of time passed since the beginning of the reading T.

Write a formula to describe this function.

The formula of the given problem in function form is

L(t) = 150 - 25t where, t represents the hour

Step-by-step explanation:

Given,

Ray reads the at a constant rate of 25 pages per hour.

To find, the function L: the pages left to read

Let, t be the hours

So, in t hours he read 25T pages

After T hours he was left with (150 - 25t) pages to read.

Formula

Hence, the required function will be

L(t) = 150 - 25t where, t represents the hour

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