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Anika [276]
2 years ago
14

PLEASE HELP !! ILL GIVE BRAINLIEST !!

Mathematics
2 answers:
ra1l [238]2 years ago
6 0

Answer:

2nd one ( Efc & dcf ) & 4th one (Bcf & gfc) .

Step-by-step explanation:

Hope it helps .

zhenek [66]2 years ago
3 0

Answer:

BCF and GFC

EFC and DCF

because they are alternate

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9514 1404 393

Answer:

  9, the sum of the numbers given in the ratio

Step-by-step explanation:

The reduced ratio 2 : 7 means that two parts correspond to one length and 7 parts correspond to the other length. That is, there are a total of 2+7 = 9 parts in the full length of the segment.

It is convenient to think of the line segment as being divided into 9 equal parts.

_____

<em>Additional comments</em>

It is often helpful to consider the total number of "ratio units" in a given ratio. For example, in this problem, the shorter segment is 2/9 of the whole, and the longer one is 7/9 of the whole.

It can also be useful to consider what a "ratio unit" represents. If the whole segment is 27 inches long, then each of the 9 ratio units will represent 3 inches, for example. This means the division 2:7 is 2(3 in):7(3 in) = 6 in : 21 in.

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