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Art [367]
3 years ago
15

Seven people meet and shake hands with one another. how many handshakes occur ?

Mathematics
2 answers:
N76 [4]3 years ago
7 0

If seven people meet and shake hands with each other, then each person will shake each person's hand at least one time.

7*7=49.

There will be 49 handshakes.

Kryger [21]3 years ago
5 0
49 shakes in total. 7x7=49
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Find an equation of the line passing through the pair of points. Write the equation in slope-intercept form. (2,8), and (8,2)
leonid [27]

Answer:

y=-x+10

Step-by-step explanation:

Hi there!

Slope intercept form: y=mx+b where m is the slope of the line and b is the y-intercept (the value of y when the line crosses the y-axis)

<u>1) Find the slope (m)</u>

m=\frac{y_2-y_1}{x_2-x_1} where the two given points are (x_1,y_1) and (x_2,y_2)

Plug in the given points (2,8),and (8,2)

​m=\frac{2-8}{8-2}\\m=\frac{-6}{6}\\m=-1

Therefore, the slope of the line is -1. Plug this into  y=mx+b:

y=-x+b

<u>2) Find the y-intercept (b)</u>

y=-x+b

Plug in a given point and solve for b

8=-2+b

Add 2 to both sides

8+2=-2+b+2\\10=b

Therefore, the y-intercept is 10. Plug this back into y=-x+b:

y=-x+10

I hope this helps!

3 0
3 years ago
When Justin goes to work, he drives at an average speed of 60 miles per hour. It takes about 1 hour and 30
dexar [7]

Answer:

$13.14

Step-by-step explanation:

60 mi/1 hour = x mi/1.5 hours

x = 90 mi to drive to work

25 mi/1 gallon = 90 mi/y gallons

y = 3.6 gallons to get to work

$3.65/1 gallon = $z/3.6 gallons

z = $13.14

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4 years ago
Using y=mx+b find the slope for<br> 7) 8x + 3y = −9
malfutka [58]

Answer:

-8/3

Step-by-step explanation:

8x + 3y = - 9

Let's make y the subject of the formula.

y = - 9/3 - 8x/3

Rearrange

y = - 8x/3 - 3

The slope is the coefficient of x which is - 8/3

If you don't understand, please leave a comment

Please gimme brainliest

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3 years ago
Can 166/100 be simplified
sesenic [268]
Yes it can be simplified and it would be 17/10

how?
            166/100 divided by 2 

divide 166 and 100 and u would get 85/10 simplified again u would get 17/10
7 0
4 years ago
Gina wants to list the numbers below in order from least to greatest. 0.02, 0.002, 0.2, 1/20 Which of the lists below shows the
vichka [17]
0.002, 0.02, 0.05 (which is 1/20), 0.2
4 0
3 years ago
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