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3 years ago

9

6 people meet for a business lunch. Each person shakes hands once with each other person present. How many handshakes take place

?

2 answers:

GalinKa [24]3 years ago

7 0

$First\ person-5\ shakes\ hands\\Second\ person-4\ shakes\ hands\\3-th\ person-3\ shakes\ hands\\4-th\ person-2\ shakes\ hands\\5-th\ person-1\ shakes\ hands\\\\1+2+3+4+5=15\ \ shakes\ hands$

schepotkina [342]3 years ago

5 0

$1+2+3+4+5=15$
There will be 15 handshakes :)

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3 years ago

Can someone help me, I don’t get this

dmitriy555 [2]

I'll break it down for you. Here are the main points:

-has 2 large servings

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$\frac{9}{2\\}$ =4.5 or 4 $\frac{1}{2}$

So for each serving it will come out to be 4.5 pints.

Now that we know this we can figure out the slope to find what the equation which is for example the slope for this equation would be rise over run for example:

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3 years ago

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iogann1982 [59]

Since m is the midpoint of ab, then the following relationship is fulfilled:
$am = \frac{ab}{2}$
Therefore, substituting values we have:
$2x+9 = \frac{8x-50}{2}$
From here, we clear the value of x.
We have then:
$2x+9 = 4x-25$
$9+25 = 4x-2x$
$34 = 2x$
$x = \frac{34}{2}$
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$am=2x+9$
Substituting we have:
$am=2(17)+9$
$am=34+9$
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Answer:
the length of am is:
$am=43$

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