Can someone please help me understand ?

timer Asked: Sep 25th, 2015

Question description

The Spache Readability Formula is designed to categorize reading materials for grades 1-3. For a passage of text, the variables are S, the number of sentences, W, the number of words, and U, the number of unfamiliar words (words not on a specific list). The formula (as revised) for the grade level is

Grade level=  0.121(W/S)+0.082U+0.659

In this exercise we consider passages having 270 words and using 8 unfamiliar words.

1. What is the maximum possible number of sentences? 

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