Respuesta :
Step [tex]1[/tex]
Find the unit rates in Alpha printing
[tex]Unit\ rate= \frac{40}{400}\frac{\$}{brochure} =0.10 \frac{\$}{brochure}[/tex]
Step [tex]2[/tex]
Find the unit rates in Omega printing
[tex]Unit\ rate= \frac{40}{1000}\frac{\$}{brochure} =0.04 \frac{\$}{brochure}[/tex]
Step [tex]3[/tex]
Find the difference of the unit rates
[tex]0.10 \frac{\$}{brochure}-0.04 \frac{\$}{brochure}=0.06 \frac{\$}{brochure}[/tex]
therefore
the answer is
[tex]0.06 \frac{\$}{brochure}[/tex]