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shepuryov [24]
3 years ago
9

How do you do 51 and 54?

Mathematics
1 answer:
NemiM [27]3 years ago
5 0
51. I checked the comments but I still didn't understand it, sorry :/

54.

(43+45+47+49)=184

They are all odd and they are in consecutive order (one after another)
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Find the unknown factor.<br> 28=7 x (4 x
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Answer:

The missing factor is 1.

28=7\times(4\times1)

Step-by-step explanation:

28=7\times(4\times y), where y is the unknown factor.

You can solve this equation for y.

Divide both sides by 7:

\rightarrow 28\div7=(7\times(4\times y))\div7\\\rightarrow4=4\times y

Divide both sides by 4:

\rightarrow4\div4=(4\times y)\div4\\\rightarrow1=y\\\rightarrow y=1

The missing factor is 1.

28=7\times(4\times1)

You can also tell just by looking on this particular problem. 7\times4=28, so the missing factor can't be anything other than 1.

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