Which number could be placed in the blank to make the equation true? 6×5/6= ×1/6

Mathematics

1 answer:

yaroslaw [1]3 years ago

7 0

30 is the answer
6*5\6 is 5
And 30 is needed to be multiplied y one to get five

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The 3 by 3 grid below shows nine 1 cm × 1 cm squares and uses 24 cm of wire. What length of wire is required for a similar 20 by

Nady [450]

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Step-by-step explanation:

Hi there!

Usually, this kind of problem asks us the perimeter rather than the area. But when talking on this grid on how many cms are necessary to construct one made up of 9 squares 1cm x1 cm. We need to check one thing: Some line segments will be used twice. So this is not a classical perimeter question.

1) So we either manually and carefully count it avoiding not doing it twice the same common line segments.

Or.

2) By just applying an algorithm, Where n is the nxn grid

$n(n+1)+n(n+1)=Length \:of \:the \:wire$