Answer:
48 minutes.
Step-by-step explanation:
Reggie can line [tex]\frac{1}{120}[/tex] of a football field in one minute.
Rosalinda can line [tex]\frac{1}{80}[/tex] of a football field in one minute.
[tex]\frac{1}{120}[/tex] + [tex]\frac{1}{80}[/tex] = [tex]\frac{1}{48}[/tex], so together, they can line [tex]\frac{1}{48}[/tex] of a football field in one minute.
[tex]\frac{1}{48}[/tex] * 48 = 1
They can line 1 football field together in 48 minutes.
