3 years ago

Helpppp pleaseee X•1 + x/1=

Mathematics

1 answer:

dem82 [27]3 years ago

6 0

x * 1 + x/1 =

x + x =

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If I can paint a wall in 20 min and my friend can paint a wall in 30 min. How many minutes would it take for us to paint a wall

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Answer: $12\ \text{min}$

Step-by-step explanation:

Given

It takes 20 min and 30 min for a person and his friend to paint a wall individually i.e.

In 1 min they cover $\frac{1}{20}$ part and $\frac{1}{30}$ part of wall respectively.

If the work together, 1 minute work is

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Answer:

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Step-by-step explanation:

The equation for the total number of cases is ...

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<em>Additional comment</em>

The solution to these equations is (x, y) = (15, 5).

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