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Nikolay [14]
1 year ago
9

If seven people meet each other and each shake hands only once with each of the others, how many handshakes happened?

Mathematics
2 answers:
Andreas93 [3]1 year ago
4 0

Answer:

alright so every person shook 7 people's hands so 7x and there are 7 people so 7(7) and that is 49

Elenna [48]1 year ago
3 0
If it’s only 7 ppl you would have to double the amount of people meaning that 14 people shook each other’s hands but not quite cause they shook each other’s hands 7•14=98/4=25
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49 more than the quotient of an unknown number and 12 is 53. What is the value of the unknown number?
lara [203]
Unknown = x

the quotient of x and 12 is x/12 than 49 more than that is 53,
(x/12)+49=53, now use basic math and solve

-49 from both side,
x/12=4

*12 to both side,
x=48

therefore the unknown number is 48

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3 years ago
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pantera1 [17]

Hi!

To solve this, we must make an equation in y = mx + b form, where m is the slope and b is the y-intercept.

Since we are looking at a graph with points, it saves us a TON of work, and all we have to do is simply look at the graph. We only need to find m and b, that's it!

M is the slope, and the slope can be represented by the change between points on a line, also known as <em>rise/run. </em>

If we start at point (-4, -1), and go to point (-2, 0), we can see that it goes up 1 and right 2, which would be represented as 1/2.

B is the y-intercept, and that is simply the point that is on the y-axis, which is the point (0, 1), so our number would be 1.

Therefore, plugging these numbers into the equation, our equation is y = <em>1/2</em>x + <em>1</em>

<em></em>

Hope this helps! :D

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Step-by-step explanation:

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Anarel [89]

Answer:

Quadrant 2

Step-by-step explanation:

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earnstyle [38]

Answer:

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5 0
3 years ago
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