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3 years ago

-5 = 4 - m

Mathematics

2 answers:

fenix001 [56]3 years ago

8 0

So the answer would be m=1

Ronch [10]3 years ago

7 0

Answer:

9 = m

Step-by-step explanation:

-5 = 4 - m

-9 = -m

m=9

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2 years ago

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Step-by-step explanation:

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Irina:
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Irina takes 7 hours to paint the room.
In 1 hour, Irina can paint 1/7 of the room.

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Paulo:
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Paulo takes 6 hours to paint the room.
In 1 hour, Paulo can paint 1/6 of the room.

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Both paint together:
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In one hour they can paint (1/7 + 1/6) of the room.
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So, it takes 13/42 of the room takes 1 hour.

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Find the number of hours
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13/42 of the room = 1 hour

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3 years ago