2 years ago

Which number is divisible by 3? A) 1,794 B) 1,912 C) 1,270 D) 473

Mathematics

1 answer:

Karolina [17]2 years ago

5 0

Answer:

Step-by-step explanation:

should be A.

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Andrew can paint the neighbor's house 6 times as fast as The year and worked together, it took them 5 days. How long would it

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Answer: $\dfrac{35}{6}\ \text{days},\ 35\ \text{days}$

Step-by-step explanation:

Given

Andrew can paint times faster than the other

Suppose the other person take 6x days

So, andrew takes only x days to paint alone

When they work together, it took them 5 days i.e.

$\Rightarrow \dfrac{1}{x}+\dfrac{1}{6x}=\dfrac{1}{5}\\\\\Rightarrow \dfrac{6+1}{6x}=\dfrac{1}{5}\\\\\Rightarrow x=\dfrac{35}{6}\ \text{days}$

So, time taken by the to finish individually is given by

$\Rightarrow \text{Andrew= }\dfrac{35}{6}\ \text{days}\\\\\Rightarrow \text{Other Person}=6\times \dfrac{35}{6}\\\\\Rightarrow \text{Other Person}=35\ \text{days}$

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Step-by-step explanation:

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