## Elementary Algebra

Let x represent the price per 1 inch of tubing. We set up the proportion and solve by finding the cross product. $\frac{12.60}{x}$ = $\frac{30}{1}$ 12.60 $\times$ 1 = 30 $\times$ x 12.60 = 30x Divide both sides by 30. 0.42 = x The price of the tubing per inch would be 0.42 dollars.