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12-11-2016
Mathematics

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Melinda paints 7/8 of a wall in 1 1/6 hours. What part of a wall does Melinda paint in 1 minute?

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Аноним Аноним

12-11-2016

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.

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