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Alexxx [7]
3 years ago
10

There are 7 people at a party. Each person must shake hands with all the other people at the party once. How many handshakes doe

s it take to do this?
Mathematics
2 answers:
katrin2010 [14]3 years ago
8 0

Answer:


Step-by-step explanation:

21


Debora [2.8K]3 years ago
3 0
It would take 42 handshakes to shake everyone's hand
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-6(2+n) is greater than 72
Hitman42 [59]

Answer:

n > -14

Step-by-step explanation:

Firstly, you use the distributive property;

-12 - 6n > 72

Then, since 12 is negative, you add 12 to both sides;

-12 - 6n > 72

+12           +12

-6n > 84

Then you divide both sides by -6 to get n > -14.


Shoot, hold on; this is an edit; did you mean that 72 is greater than -6(2 + n) or did you accidentally flip the sign in the picture? Hopefully I did what you needed.


5 0
3 years ago
Read 2 more answers
Solve A=LW for width
Nataly_w [17]
Area= (length)(width)

divide by (length) on both sides.

(width)= (area)/(length).

Your best bet is treating area, length, and width as numbers. You can plug in numbers and take them out in the end. Hope this helps!
5 0
3 years ago
Drake's sister Stephanie is 2 years younger than him. If the sum of Drake's age and 2 times Stephanie's age is 98, how old is St
Bogdan [553]

Answer:

S=32 D=34

Step-by-step explanation:

{-----------------VARIABLES------------}

D=Drake

S=Stephanie

TA=Total Age

{----------------GIVEN/EQUATIONS-------------}

D=S+2

TA=D+2s

{--------------SUB/SOLVE---------------}

98=D+2S

SUB FOR D

98=3S+2

96=3S

S=32

D=S+2

D=34

5 0
3 years ago
Determine the next three terms in the following sequence: 1, 8, 27, 64,____, ____, ____,...
Dovator [93]
Hello,

Answer D
x_{n} =n^3\\
 x_{1} =1^3=1\\
 x_{2} =2^3=8\\
 x_{3} =3^3=27\\
 x_{4} =4^3=64\\
 x_{5} =5^3=125\\
 x_{6} =6^3=216\\
 x_{7} =7^3=343\\

4 0
4 years ago
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HELLO SOMEONE HELP ME WITH THIS MATH QUESTION PLZ TY! :D
Lunna [17]
The area of the figure is 13 square units
5 0
3 years ago
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