# Math Help - Help setting up problem.

1. ## Help setting up problem.

A "square" of shingles covers 100 square feet. For a roof of x square feet, the function N(x)= x/100 models the number N of squares that will be needed. Evaluate N to determine the number of squares required for a roof of 5100 square feet. How should I arrange the information to arrive at an answer?

2. Originally Posted by Ash
A "square" of shingles covers 100 square feet. For a roof of x square feet, the function N(x)= x/100 models the number N of squares that will be needed. Evaluate N to determine the number of squares required for a roof of 5100 square feet. How should I arrange the information to arrive at an answer?
Hello,

with the given values you know that x = 5100. Plug in this value into the equation and you'll get:

$N(5100)=\frac{5100}{100}= 51 \text{ squares}$

EB

3. Thank you very much. Thats what I thought it was!!!