1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
PSYCHO15rus [73]
3 years ago
12

There are 40 people at Drake's sweet sixteen party. Drake's only rule is that everyone in the party must meet and shake each oth

ers hand. If all 40 guest shake each other's hand once and only once.
(1) How many handshakes are there altogether? (50 pts)
(2) How did you get your solution? (30 pts)
(3) What's the quickest way to figure this out if Drake invited 1000 people? (20 pts)
PLEASE EXPLAIN 3.
Mathematics
1 answer:
Mashutka [201]3 years ago
4 0

Answer:

1 is 1600

Step-by-step explanation:

Because 40 people and each person shakes each other hands so its 1600

You might be interested in
Tell whether the angles are complementary or supplementary. Then fir<br> the value of x.
Helga [31]

Answer:

Step-by-step explanation:

4. 10x + 30 = 90

    10x = 60

     x = 6

   complementary

5. 4x + 40 + 3x = 180

   7x + 40 = 180

   7x = 140

    x = 20

   supplementary

4 0
2 years ago
Ugh Once again I need help please help!
Andrews [41]

Answer:

Ugh Once again I need help please help!

Step-by-step explanation:

Ugh Once again I need help please help!

7 0
3 years ago
Read 2 more answers
You are choosing between two health clubs. Club A offers membership for a fee of $ 19plus a monthly fee of $ 21.  Club B off
11111nata11111 [884]

Answer:

For 2 months

Step-by-step explanation:

Let after x months the cost of each health club is same,

Now, In club A,

Membership fees = $ 19,

Monthly fees = $ 21,

So, the total fees for x months = membership fees + total monthly fees for x months

= 19 + 21x

In Club B,

Membership fees = $ 23,

Monthly fees = $ 20,

So, the total fees for x months = membership fees + total monthly fees for x months

= 23 + 20x

Thus, we can write,

19 + 21x = 23 + 20x

21x - 20x = 23 - 21

x = 2

Hence, for 2 months the total cost of each health club would be same.

8 0
3 years ago
jess has $22 and saves $5 each week rosie has $10 and saves $8 each week how many weeks till they have the same amount of money
Lemur [1.5K]
Answer: 5 weeks

Explanation:
Jess starts with $22 and saves $5 per week, Rosie has $10 and saves $8 per week.

In order to find an equal amount of money between the two girls is by finding a common denominator.

Jess- 22, 27, 32, 37, 42
Rosie- 10, 18, 26, 34, 42

Since we found that they can both end up with $42, after a certain amount of weeks have passed, now you’ll want to count how many numbers are in each row to find the amount of weeks it took to get to an equal amount
4 0
3 years ago
Which rays are part of like BE
tensa zangetsu [6.8K]

Answer:

What rays?

Step-by-step explanation:

Is it the new album of BtS?

6 0
3 years ago
Other questions:
  • The function H(t) = −16t2 + 96t + 80 shows the height H(t), in feet, of a projectile after t seconds. A second object moves in t
    5·1 answer
  • Can someone answer these correctly please!!
    11·1 answer
  • Malik considers the enlargement of the trapezoid. Not drawn to scale What is the correct cross product that he should use to sol
    14·1 answer
  • 3x+2(4x-4)=3 I need help with this asappp
    15·1 answer
  • Please help me with this
    5·1 answer
  • Please answer correctly !!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • Una función impar con quien tiene simetría?
    6·1 answer
  • Please help with these 3 questions
    11·1 answer
  • Please help I need help with this question
    15·1 answer
  • If i have 37 test left and do 6 a day how many weeks will that take me to be done
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!