Respuesta :

1 1/6 hour = 70min
7/8 of wall in 70min
x wall in 1min
 
Proportion:
7/8 - 70
x - 1
Cross multiplication:

7/8 = 70x divide by 70

x = 1/80

In 1 min Melinda will paint 1/80 of a wall.


Hoped this helps!!!!!!!!!!!! Don't forget to rate me brainliest please.

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