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VMariaS [17]
2 years ago
9

You and a roommate are hosting a party. You invite 10 other pairs of roommates. During the party you poll everyone at the party

(excluding yourself) and ask how many hands each person shook. Two conditions: a) Each person did not shake his roommate's hand. b) Each person shook a different number of hands. Question: How many hands did you roommate shake?
Mathematics
1 answer:
solong [7]2 years ago
5 0
The orders of pairs are 23
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There are two thousand girls and one thousand boys at a university.For every girl with glasses there are two boys who were glass
e-lub [12.9K]

Answer:

200

Step-by-step explanation:

2000 girls :1000 boys

2000 +1000 =3000

20% of 3000 = 600

I girl : 2 boys

1+2=3

600÷3 = 200

200 boys wore glasses

4 0
3 years ago
The ratio of the ages (in years) of two teachers is 8 : 9. The sum of their ages is 51. What is the age of each teacher?
Keith_Richards [23]

Answer:

Check pdf

Step-by-step explanation:

Download pdf
8 0
3 years ago
What percent of 56 is 14?
Marysya12 [62]

Answer:

25 percent

Step-by-step explanation:

Of means multiply and is means equals

P * 56 = 14

Divide each side by 56

P = 14/56

P = .25

To change to a percent, multiply by 100

P = 25 percent

4 0
3 years ago
Read 2 more answers
The table shows the height of a ball that was dropped from a 380-foot tower. What was the ball's rate of fall during the first 3
Alex

Answer:

60ft/s

Step-by-step explanation:

To find the rate

rate = f(3) - f(0)

         -------------

         3-0

rate = 200-380

         ---------------

         3-0

rate = -180/3   = -60 ft/s

The negative tells us it is falling

The fall falls 60ft/s

8 0
3 years ago
Read 2 more answers
My friend needs help on this sorry!
dlinn [17]

9514 1404 393

Answer:

  $144

Step-by-step explanation:

Multiplication is used to simplify repeated addition. To find the total cost, add up the costs of each of the tickets.

  6 child tickets will cost $10 +10 +10 +10 +10 +10 = 6×$10 = $60

  6 adult tickets will cost $14 +14 +14 +14 +14 +14 = 6×$14 = $84

Then the total cost of all of these tickets will be ...

  $60 +84 = $144 . . . . cost of zoo tickets in all

5 0
3 years ago
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